442066356 has 48 divisors (see below), whose sum is σ = 1148878080. Its totient is φ = 146998080.

The previous prime is 442066321. The next prime is 442066363. The reversal of 442066356 is 653660244.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 442066356.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41800 + ... + 51296.

It is an arithmetic number, because the mean of its divisors is an integer number (23934960).

Almost surely, 2^442066356 is an apocalyptic number.

It is an amenable number.

442066356 is an abundant number, since it is smaller than the sum of its proper divisors (706811724).

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

442066356 is a wasteful number, since it uses less digits than its factorization.

442066356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9941 (or 9933 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The square root of 442066356 is about 21025.3740989310. The cubic root of 442066356 is about 761.7792776300.

The spelling of 442066356 in words is "four hundred forty-two million, sixty-six thousand, three hundred fifty-six".