52638942 has 8 divisors (see below), whose sum is σ = 105277896. Its totient is φ = 17546312.

The previous prime is 52638941. The next prime is 52638959. The reversal of 52638942 is 24983625.

It is a happy number.

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

52638942 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 52638942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52638941) 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, 4386573 + ... + 4386584.

It is an arithmetic number, because the mean of its divisors is an integer number (13159737).

Almost surely, 2^52638942 is an apocalyptic number.

52638942 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

52638942 is a wasteful number, since it uses less digits than its factorization.

52638942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8773162.

The product of its digits is 103680, while the sum is 39.

The square root of 52638942 is about 7255.2699467353. The cubic root of 52638942 is about 374.7736518493.

The spelling of 52638942 in words is "fifty-two million, six hundred thirty-eight thousand, nine hundred forty-two".