442408 has 16 divisors (see below), whose sum is σ = 878580. Its totient is φ = 208128.

The previous prime is 442399. The next prime is 442439. The reversal of 442408 is 804244.

It can be written as a sum of positive squares in 2 ways, for example, as 338724 + 103684 = 582^2 + 322^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1491 + ... + 1762.

2⁴⁴²⁴⁰⁸ is an apocalyptic number.

It is an amenable number.

442408 is a deficient number, since it is larger than the sum of its proper divisors (436172).

442408 is a wasteful number, since it uses less digits than its factorization.

442408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3276 (or 3272 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 442408 is about 665.1375797532. The cubic root of 442408 is about 76.1975470124.

The spelling of 442408 in words is "four hundred forty-two thousand, four hundred eight".