23520464 has 30 divisors (see below), whose sum is σ = 50094450. Its totient is φ = 10690240.

The previous prime is 23520443. The next prime is 23520473. The reversal of 23520464 is 46402532.

It can be written as a sum of positive squares in only one way, i.e., 23425600 + 94864 = 4840^2 + 308^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4139 + ... + 8010.

It is an arithmetic number, because the mean of its divisors is an integer number (1669815).

Almost surely, 2^23520464 is an apocalyptic number.

It is an amenable number.

23520464 is an abundant number, since it is smaller than the sum of its proper divisors (26573986).

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

23520464 is a wasteful number, since it uses less digits than its factorization.

23520464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12179 (or 12162 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 23520464 is about 4849.7900985507. The cubic root of 23520464 is about 286.5158343592.

Adding to 23520464 its reverse (46402532), we get a palindrome (69922996).

The spelling of 23520464 in words is "twenty-three million, five hundred twenty thousand, four hundred sixty-four".