23057890920 has 256 divisors, whose sum is σ = 78216192000. Its totient is φ = 6116601600.

The previous prime is 23057890897. The next prime is 23057890927. The reversal of 23057890920 is 2909875032.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23057890927) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20032345 + ... + 20033495.

It is an arithmetic number, because the mean of its divisors is an integer number (305532000).

Almost surely, 2^23057890920 is an apocalyptic number.

23057890920 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 23057890920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39108096000).

23057890920 is an abundant number, since it is smaller than the sum of its proper divisors (55158301080).

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

23057890920 is a wasteful number, since it uses less digits than its factorization.

23057890920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412 (or 1390 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 23057890920 in words is "twenty-three billion, fifty-seven million, eight hundred ninety thousand, nine hundred twenty".