11770020 has 72 divisors (see below), whose sum is σ = 37267776. Its totient is φ = 3001152.

The previous prime is 11770019. The next prime is 11770021. The reversal of 11770020 is 2007711.

It is an interprime number because it is at equal distance from previous prime (11770019) and next prime (11770021).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11769975 and 11770002.

It is not an unprimeable number, because it can be changed into a prime (11770021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2719 + ... + 5561.

It is an arithmetic number, because the mean of its divisors is an integer number (517608).

Almost surely, 2^11770020 is an apocalyptic number.

11770020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11770020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18633888).

11770020 is an abundant number, since it is smaller than the sum of its proper divisors (25497756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11770020 is a wasteful number, since it uses less digits than its factorization.

11770020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2881 (or 2876 counting only the distinct ones).

The product of its (nonzero) digits is 98, while the sum is 18.

The square root of 11770020 is about 3430.7462745006. The cubic root of 11770020 is about 227.4708411689.

Adding to 11770020 its reverse (2007711), we get a palindrome (13777731).

It can be divided in two parts, 1 and 1770020, that added together give a triangular number (1770021 = T₁₈₈₁).

The spelling of 11770020 in words is "eleven million, seven hundred seventy thousand, twenty".