23538142 has 16 divisors (see below), whose sum is σ = 36484560. Its totient is φ = 11380608.

The previous prime is 23538139. The next prime is 23538143. The reversal of 23538142 is 24183532.

It is a self number, because there is not a number n which added to its sum of digits gives 23538142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23538143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12358 + ... + 14134.

It is an arithmetic number, because the mean of its divisors is an integer number (2280285).

Almost surely, 2^23538142 is an apocalyptic number.

23538142 is a deficient number, since it is larger than the sum of its proper divisors (12946418).

23538142 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (23538141) it forms an eRAP, since the sums of their prime factors are consecutive (1994 and 1995).

23538142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1995.

The product of its digits is 5760, while the sum is 28.

The square root of 23538142 is about 4851.6123093256. The cubic root of 23538142 is about 286.5875982282.

The spelling of 23538142 in words is "twenty-three million, five hundred thirty-eight thousand, one hundred forty-two".