23319400 has 48 divisors (see below), whose sum is σ = 58394700. Its totient is φ = 8609280.

The previous prime is 23319397. The next prime is 23319407. The reversal of 23319400 is 491332.

It can be written as a sum of positive squares in 6 ways, for example, as 4639716 + 18679684 = 2154^2 + 4322^2 .

It is not an unprimeable number, because it can be changed into a prime (23319407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1885 + ... + 7084.

Almost surely, 2^23319400 is an apocalyptic number.

23319400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23319400 is an abundant number, since it is smaller than the sum of its proper divisors (35075300).

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

23319400 is a wasteful number, since it uses less digits than its factorization.

23319400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8998 (or 8989 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 23319400 is about 4829.0164630078. The cubic root of 23319400 is about 285.6970727725.

The spelling of 23319400 in words is "twenty-three million, three hundred nineteen thousand, four hundred".