23305672 has 32 divisors (see below), whose sum is σ = 47287800. Its totient is φ = 10704384.

The previous prime is 23305669. The next prime is 23305673. The reversal of 23305672 is 27650332.

It can be written as a sum of positive squares in 4 ways, for example, as 16924996 + 6380676 = 4114^2 + 2526^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23305672.

It is not an unprimeable number, because it can be changed into a prime (23305673) 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 7 ways as a sum of consecutive naturals, for example, 28404 + ... + 29212.

Almost surely, 2^23305672 is an apocalyptic number.

It is an amenable number.

23305672 is an abundant number, since it is smaller than the sum of its proper divisors (23982128).

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

23305672 is a wasteful number, since it uses less digits than its factorization.

23305672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105 (or 1101 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 23305672 is about 4827.5948462977. The cubic root of 23305672 is about 285.6409990128.

The spelling of 23305672 in words is "twenty-three million, three hundred five thousand, six hundred seventy-two".