23159040 has 144 divisors (see below), whose sum is σ = 76429248. Its totient is φ = 5971968.

The previous prime is 23159033. The next prime is 23159047. The reversal of 23159040 is 4095132.

It is an interprime number because it is at equal distance from previous prime (23159033) and next prime (23159047).

It is a super-2 number, since 2×23159040² = 1072682267443200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 23159040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23159047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141999 + ... + 142161.

Almost surely, 2^23159040 is an apocalyptic number.

23159040 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 23159040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38214624).

23159040 is an abundant number, since it is smaller than the sum of its proper divisors (53270208).

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

23159040 is a wasteful number, since it uses less digits than its factorization.

23159040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 210 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 23159040 is about 4812.3840245766. The cubic root of 23159040 is about 285.0406836351.

The spelling of 23159040 in words is "twenty-three million, one hundred fifty-nine thousand, forty".