23431464 has 64 divisors (see below), whose sum is σ = 74390400. Its totient is φ = 6694272.

The previous prime is 23431453. The next prime is 23431469. The reversal of 23431464 is 46413432.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (23431469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6237 + ... + 9260.

It is an arithmetic number, because the mean of its divisors is an integer number (1162350).

Almost surely, 2^23431464 is an apocalyptic number.

23431464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23431464 is an abundant number, since it is smaller than the sum of its proper divisors (50958936).

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

23431464 is a wasteful number, since it uses less digits than its factorization.

23431464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15519 (or 15509 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 23431464 is about 4840.6057472180. The cubic root of 23431464 is about 286.1539914351.

Adding to 23431464 its reverse (46413432), we get a palindrome (69844896).

The spelling of 23431464 in words is "twenty-three million, four hundred thirty-one thousand, four hundred sixty-four".