23407138 has 8 divisors (see below), whose sum is σ = 35605440. Its totient is φ = 11538660.

The previous prime is 23407133. The next prime is 23407151. The reversal of 23407138 is 83170432.

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

It is not an unprimeable number, because it can be changed into a prime (23407133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82278 + ... + 82561.

It is an arithmetic number, because the mean of its divisors is an integer number (4450680).

Almost surely, 2^23407138 is an apocalyptic number.

23407138 is a deficient number, since it is larger than the sum of its proper divisors (12198302).

23407138 is a wasteful number, since it uses less digits than its factorization.

23407138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164912.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 23407138 is about 4838.0923926688. The cubic root of 23407138 is about 286.0549310109.

The spelling of 23407138 in words is "twenty-three million, four hundred seven thousand, one hundred thirty-eight".