52442390 has 128 divisors (see below), whose sum is σ = 131604480. Its totient is φ = 14601600.

The previous prime is 52442363. The next prime is 52442417. The reversal of 52442390 is 9324425.

It is an interprime number because it is at equal distance from previous prime (52442363) and next prime (52442417).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1691675 + ... + 1691705.

It is an arithmetic number, because the mean of its divisors is an integer number (1028160).

Almost surely, 2^52442390 is an apocalyptic number.

52442390 is an abundant number, since it is smaller than the sum of its proper divisors (79162090).

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

52442390 is a wasteful number, since it uses less digits than its factorization.

52442390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 52442390 is about 7241.7118142053. The cubic root of 52442390 is about 374.3066060773.

The spelling of 52442390 in words is "fifty-two million, four hundred forty-two thousand, three hundred ninety".