23056740 has 144 divisors (see below), whose sum is σ = 82817280. Its totient is φ = 5080320.

The previous prime is 23056721. The next prime is 23056751. The reversal of 23056740 is 4765032.

It is a happy number.

It is a super-2 number, since 2×23056740² = 1063226518855200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36225 + ... + 36855.

It is an arithmetic number, because the mean of its divisors is an integer number (575120).

Almost surely, 2^23056740 is an apocalyptic number.

23056740 is a gapful number since it is divisible by the number (20) 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 23056740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41408640).

23056740 is an abundant number, since it is smaller than the sum of its proper divisors (59760540).

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

23056740 is a wasteful number, since it uses less digits than its factorization.

23056740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682 (or 677 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 23056740 is about 4801.7434333792. The cubic root of 23056740 is about 284.6203624834.

It can be divided in two parts, 2305 and 6740, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 23056740 in words is "twenty-three million, fifty-six thousand, seven hundred forty".