23628538 has 8 divisors (see below), whose sum is σ = 37527732. Its totient is φ = 11119296.

The previous prime is 23628529. The next prime is 23628557. The reversal of 23628538 is 83582632.

It can be written as a sum of positive squares in 2 ways, for example, as 23454649 + 173889 = 4843^2 + 417^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 23628497 and 23628506.

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 3 ways as a sum of consecutive naturals, for example, 347445 + ... + 347512.

Almost surely, 2^23628538 is an apocalyptic number.

23628538 is a deficient number, since it is larger than the sum of its proper divisors (13899194).

23628538 is a wasteful number, since it uses less digits than its factorization.

23628538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694976.

The product of its digits is 69120, while the sum is 37.

The square root of 23628538 is about 4860.9194603490. The cubic root of 23628538 is about 286.9540004057.

The spelling of 23628538 in words is "twenty-three million, six hundred twenty-eight thousand, five hundred thirty-eight".