23531304 has 16 divisors (see below), whose sum is σ = 58828320. Its totient is φ = 7843760.

The previous prime is 23531303. The next prime is 23531309. The reversal of 23531304 is 40313532.

It is not an unprimeable number, because it can be changed into a prime (23531303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 490212 + ... + 490259.

It is an arithmetic number, because the mean of its divisors is an integer number (3676770).

Almost surely, 2^23531304 is an apocalyptic number.

23531304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23531304 is an abundant number, since it is smaller than the sum of its proper divisors (35297016).

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

23531304 is a wasteful number, since it uses less digits than its factorization.

23531304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980480 (or 980476 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 23531304 is about 4850.9075439550. The cubic root of 23531304 is about 286.5598436190.

Adding to 23531304 its reverse (40313532), we get a palindrome (63844836).

The spelling of 23531304 in words is "twenty-three million, five hundred thirty-one thousand, three hundred four".