442446404 has 12 divisors (see below), whose sum is σ = 775493628. Its totient is φ = 220876800.

The previous prime is 442446401. The next prime is 442446409. The reversal of 442446404 is 404644244.

It can be written as a sum of positive squares in 2 ways, for example, as 324072004 + 118374400 = 18002^2 + 10880^2 .

It is not an unprimeable number, because it can be changed into a prime (442446401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83717 + ... + 88844.

It is an arithmetic number, because the mean of its divisors is an integer number (64624469).

Almost surely, 2^442446404 is an apocalyptic number.

It is an amenable number.

442446404 is a deficient number, since it is larger than the sum of its proper divisors (333047224).

442446404 is a wasteful number, since it uses less digits than its factorization.

442446404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173206 (or 173204 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 32.

The square root of 442446404 is about 21034.4099988566. The cubic root of 442446404 is about 761.9975176907.

The spelling of 442446404 in words is "four hundred forty-two million, four hundred forty-six thousand, four hundred four".