23213304 has 48 divisors (see below), whose sum is σ = 65203320. Its totient is φ = 7737120.

The previous prime is 23213303. The next prime is 23213317. The reversal of 23213304 is 40331232.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23213303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4027 + ... + 7914.

Almost surely, 2^23213304 is an apocalyptic number.

23213304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23213304 is an abundant number, since it is smaller than the sum of its proper divisors (41990016).

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

23213304 is a wasteful number, since it uses less digits than its factorization.

23213304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11962 (or 11946 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 23213304 is about 4818.0186799140. The cubic root of 23213304 is about 285.2631364764.

Adding to 23213304 its reverse (40331232), we get a palindrome (63544536).

It can be divided in two parts, 2321 and 3304, that added together give a square (5625 = 75²).

The spelling of 23213304 in words is "twenty-three million, two hundred thirteen thousand, three hundred four".