442842356 has 24 divisors (see below), whose sum is σ = 851891040. Its totient is φ = 199752800.

The previous prime is 442842349. The next prime is 442842397. The reversal of 442842356 is 653248244.

It is a happy number.

It is a super-2 number, since 2×442842356² = 392218704535261472, which contains 22 as substring.

It is a congruent number.

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, 32651 + ... + 44178.

It is an arithmetic number, because the mean of its divisors is an integer number (35495460).

Almost surely, 2^442842356 is an apocalyptic number.

It is an amenable number.

442842356 is a deficient number, since it is larger than the sum of its proper divisors (409048684).

442842356 is a wasteful number, since it uses less digits than its factorization.

442842356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76975 (or 76973 counting only the distinct ones).

The product of its digits is 184320, while the sum is 38.

The square root of 442842356 is about 21043.8199003888. The cubic root of 442842356 is about 762.2247576307.

The spelling of 442842356 in words is "four hundred forty-two million, eight hundred forty-two thousand, three hundred fifty-six".