442732930 has 16 divisors (see below), whose sum is σ = 804232440. Its totient is φ = 175468032.

The previous prime is 442732919. The next prime is 442732933. The reversal of 442732930 is 39237244.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 442218841 + 514089 = 21029^2 + 717^2 .

It is not an unprimeable number, because it can be changed into a prime (442732933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201999 + ... + 204178.

Almost surely, 2^442732930 is an apocalyptic number.

442732930 is a deficient number, since it is larger than the sum of its proper divisors (361499510).

442732930 is a wasteful number, since it uses less digits than its factorization.

442732930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406293.

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 442732930 is about 21041.2197840334. The cubic root of 442732930 is about 762.1619707449.

The spelling of 442732930 in words is "four hundred forty-two million, seven hundred thirty-two thousand, nine hundred thirty".