23257880 has 16 divisors (see below), whose sum is σ = 52330320. Its totient is φ = 9303136.

The previous prime is 23257877. The next prime is 23257909. The reversal of 23257880 is 8875232.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 23257880.

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 3 ways as a sum of consecutive naturals, for example, 290684 + ... + 290763.

It is an arithmetic number, because the mean of its divisors is an integer number (3270645).

Almost surely, 2^23257880 is an apocalyptic number.

23257880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23257880 is an abundant number, since it is smaller than the sum of its proper divisors (29072440).

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

23257880 is a wasteful number, since it uses less digits than its factorization.

23257880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581458 (or 581454 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 23257880 is about 4822.6424292083. The cubic root of 23257880 is about 285.4456145774.

The spelling of 23257880 in words is "twenty-three million, two hundred fifty-seven thousand, eight hundred eighty".