23013504 has 64 divisors (see below), whose sum is σ = 67932000. Its totient is φ = 7670016.

The previous prime is 23013491. The next prime is 23013509. The reversal of 23013504 is 40531032.

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 (18).

It is not an unprimeable number, because it can be changed into a prime (23013509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127 + ... + 6785.

Almost surely, 2^23013504 is an apocalyptic number.

23013504 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 23013504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33966000).

23013504 is an abundant number, since it is smaller than the sum of its proper divisors (44918496).

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

23013504 is an equidigital number, since it uses as much as digits as its factorization.

23013504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6682 (or 6664 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 23013504 is about 4797.2392060434. The cubic root of 23013504 is about 284.4423444579.

Adding to 23013504 its reverse (40531032), we get a palindrome (63544536).

The spelling of 23013504 in words is "twenty-three million, thirteen thousand, five hundred four".