52239738 has 16 divisors (see below), whose sum is σ = 105557760. Its totient is φ = 17233536.

The previous prime is 52239713. The next prime is 52239763. The reversal of 52239738 is 83793225.

It is an interprime number because it is at equal distance from previous prime (52239713) and next prime (52239763).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 52239696 and 52239705.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44298 + ... + 45461.

It is an arithmetic number, because the mean of its divisors is an integer number (6597360).

Almost surely, 2^52239738 is an apocalyptic number.

52239738 is an abundant number, since it is smaller than the sum of its proper divisors (53318022).

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

52239738 is a wasteful number, since it uses less digits than its factorization.

52239738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89861.

The product of its digits is 90720, while the sum is 39.

The square root of 52239738 is about 7227.7062751609. The cubic root of 52239738 is about 373.8238420410.

The spelling of 52239738 in words is "fifty-two million, two hundred thirty-nine thousand, seven hundred thirty-eight".