442156244 has 12 divisors (see below), whose sum is σ = 775137300. Its totient is φ = 220688448.

The previous prime is 442156223. The next prime is 442156291. The reversal of 442156244 is 442651244.

It can be written as a sum of positive squares in 2 ways, for example, as 64320400 + 377835844 = 8020^2 + 19438^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 442156244.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94859 + ... + 99410.

It is an arithmetic number, because the mean of its divisors is an integer number (64594775).

Almost surely, 2^442156244 is an apocalyptic number.

It is an amenable number.

442156244 is a deficient number, since it is larger than the sum of its proper divisors (332981056).

442156244 is a wasteful number, since it uses less digits than its factorization.

442156244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194842 (or 194840 counting only the distinct ones).

The product of its digits is 30720, while the sum is 32.

The square root of 442156244 is about 21027.5115979043. The cubic root of 442156244 is about 761.8309065119.

The spelling of 442156244 in words is "four hundred forty-two million, one hundred fifty-six thousand, two hundred forty-four".