23513028 has 48 divisors (see below), whose sum is σ = 68404224. Its totient is φ = 6107040.

The previous prime is 23513027. The next prime is 23513029. The reversal of 23513028 is 82031532.

It is an interprime number because it is at equal distance from previous prime (23513027) and next prime (23513029).

It is a junction number, because it is equal to n+sod(n) for n = 23512989 and 23513007.

It is not an unprimeable number, because it can be changed into a prime (23513027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11800 + ... + 13647.

It is an arithmetic number, because the mean of its divisors is an integer number (1425088).

Almost surely, 2^23513028 is an apocalyptic number.

23513028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

23513028 is an abundant number, since it is smaller than the sum of its proper divisors (44891196).

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

23513028 is a wasteful number, since it uses less digits than its factorization.

23513028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25472 (or 25470 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 23513028 is about 4849.0234068315. The cubic root of 23513028 is about 286.4856371615.

The spelling of 23513028 in words is "twenty-three million, five hundred thirteen thousand, twenty-eight".