11333720 has 32 divisors (see below), whose sum is σ = 25887600. Its totient is φ = 4464768.

The previous prime is 11333717. The next prime is 11333731. The reversal of 11333720 is 2733311.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 11333692 and 11333701.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 566 + ... + 4794.

Almost surely, 2^11333720 is an apocalyptic number.

11333720 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 11333720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12943800).

11333720 is an abundant number, since it is smaller than the sum of its proper divisors (14553880).

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

11333720 is a wasteful number, since it uses less digits than its factorization.

11333720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4307 (or 4303 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 20.

The square root of 11333720 is about 3366.5590741884. The cubic root of 11333720 is about 224.6246911907.

It can be divided in two parts, 113 and 33720, that added together give a palindrome (33833).

The spelling of 11333720 in words is "eleven million, three hundred thirty-three thousand, seven hundred twenty".