23538530 has 16 divisors (see below), whose sum is σ = 44599680. Its totient is φ = 8919792.

The previous prime is 23538503. The next prime is 23538547. The reversal of 23538530 is 3583532.

It is a junction number, because it is equal to n+sod(n) for n = 23538493 and 23538502.

It is an unprimeable number.

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, 61754 + ... + 62133.

It is an arithmetic number, because the mean of its divisors is an integer number (2787480).

Almost surely, 2^23538530 is an apocalyptic number.

23538530 is a deficient number, since it is larger than the sum of its proper divisors (21061150).

23538530 is a wasteful number, since it uses less digits than its factorization.

23538530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123913.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 23538530 is about 4851.6522958679. The cubic root of 23538530 is about 286.5891729118.

The spelling of 23538530 in words is "twenty-three million, five hundred thirty-eight thousand, five hundred thirty".