23051904 has 64 divisors (see below), whose sum is σ = 61763040. Its totient is φ = 7617536.

The previous prime is 23051893. The next prime is 23051927. The reversal of 23051904 is 40915032.

It is a tau number, because it is divible by the number of its divisors (64).

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66259 + ... + 66605.

Almost surely, 2^23051904 is an apocalyptic number.

23051904 is a gapful number since it is divisible by the number (24) 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 23051904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30881520).

23051904 is an abundant number, since it is smaller than the sum of its proper divisors (38711136).

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

23051904 is a wasteful number, since it uses less digits than its factorization.

23051904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537 (or 525 counting only the distinct ones).

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

The square root of 23051904 is about 4801.2398398747. The cubic root of 23051904 is about 284.6004620072.

Adding to 23051904 its reverse (40915032), we get a palindrome (63966936).

The spelling of 23051904 in words is "twenty-three million, fifty-one thousand, nine hundred four".