442137945 has 16 divisors (see below), whose sum is σ = 717386112. Its totient is φ = 232485120.

The previous prime is 442137937. The next prime is 442138007. The reversal of 442137945 is 549731244.

It is not a de Polignac number, because 442137945 - 2³ = 442137937 is a prime.

It is an unprimeable number.

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, 206512 + ... + 208641.

It is an arithmetic number, because the mean of its divisors is an integer number (44836632).

Almost surely, 2^442137945 is an apocalyptic number.

It is an amenable number.

442137945 is a deficient number, since it is larger than the sum of its proper divisors (275248167).

442137945 is a wasteful number, since it uses less digits than its factorization.

442137945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415232.

The product of its digits is 120960, while the sum is 39.

The square root of 442137945 is about 21027.0764729669. The cubic root of 442137945 is about 761.8203967006.

The spelling of 442137945 in words is "four hundred forty-two million, one hundred thirty-seven thousand, nine hundred forty-five".