408438 has 12 divisors (see below), whose sum is σ = 884988. Its totient is φ = 136140.

The previous prime is 408437. The next prime is 408461. The reversal of 408438 is 834804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11328 + ... + 11363.

It is an arithmetic number, because the mean of its divisors is an integer number (73749).

2⁴⁰⁸⁴³⁸ is an apocalyptic number.

408438 is an abundant number, since it is smaller than the sum of its proper divisors (476550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

408438 is a wasteful number, since it uses less digits than its factorization.

408438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22699 (or 22696 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 408438 is about 639.0915427386. The cubic root of 408438 is about 74.1951266164.

The spelling of 408438 in words is "four hundred eight thousand, four hundred thirty-eight".