1130420 has 24 divisors (see below), whose sum is σ = 2457000. Its totient is φ = 436352.

The previous prime is 1130417. The next prime is 1130429. The reversal of 1130420 is 240311.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 258064 + 872356 = 508^2 + 934^2 .

It is a super-3 number, since 3×1130420³ = 4333519476210264000, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1130429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395 + ... + 1554.

It is an arithmetic number, because the mean of its divisors is an integer number (102375).

2^1130420 is an apocalyptic number.

1130420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1130420 is an abundant number, since it is smaller than the sum of its proper divisors (1326580).

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

1130420 is a wasteful number, since it uses less digits than its factorization.

1130420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1987 (or 1985 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1130420 is about 1063.2121143027. The cubic root of 1130420 is about 104.1709466686.

Adding to 1130420 its reverse (240311), we get a palindrome (1370731).

The spelling of 1130420 in words is "one million, one hundred thirty thousand, four hundred twenty".