442430164 has 48 divisors (see below), whose sum is σ = 871032960. Its totient is φ = 194866560.

The previous prime is 442430161. The next prime is 442430173. The reversal of 442430164 is 461034244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442430161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 584074 + ... + 584830.

It is an arithmetic number, because the mean of its divisors is an integer number (18146520).

Almost surely, 2^442430164 is an apocalyptic number.

442430164 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

442430164 is a deficient number, since it is larger than the sum of its proper divisors (428602796).

442430164 is a wasteful number, since it uses less digits than its factorization.

442430164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168 (or 1166 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 442430164 is about 21034.0239611920. The cubic root of 442430164 is about 761.9881945342.

The spelling of 442430164 in words is "four hundred forty-two million, four hundred thirty thousand, one hundred sixty-four".