408442 has 16 divisors (see below), whose sum is σ = 666792. Its totient is φ = 186880.

The previous prime is 408437. The next prime is 408461. The reversal of 408442 is 244804.

It can be written as a sum of positive squares in 4 ways, for example, as 383161 + 25281 = 619^2 + 159^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1248 + ... + 1540.

2⁴⁰⁸⁴⁴² is an apocalyptic number.

408442 is a deficient number, since it is larger than the sum of its proper divisors (258350).

408442 is a wasteful number, since it uses less digits than its factorization.

408442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353.

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

The square root of 408442 is about 639.0946721731. The cubic root of 408442 is about 74.1953688234.

The spelling of 408442 in words is "four hundred eight thousand, four hundred forty-two".