442455930 has 48 divisors (see below), whose sum is σ = 1314728064. Its totient is φ = 101132640.

The previous prime is 442455911. The next prime is 442455941. The reversal of 442455930 is 39554244.

It is a happy number.

442455930 is a `hidden beast` number, since 44 + 24 + 5 + 593 + 0 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 350526 + ... + 351785.

It is an arithmetic number, because the mean of its divisors is an integer number (27390168).

Almost surely, 2^442455930 is an apocalyptic number.

442455930 is an abundant number, since it is smaller than the sum of its proper divisors (872272134).

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

442455930 is a wasteful number, since it uses less digits than its factorization.

442455930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702331 (or 702328 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 442455930 is about 21034.6364361260. The cubic root of 442455930 is about 762.0029863276.

The spelling of 442455930 in words is "four hundred forty-two million, four hundred fifty-five thousand, nine hundred thirty".