408872 has 8 divisors (see below), whose sum is σ = 766650. Its totient is φ = 204432.

The previous prime is 408869. The next prime is 408911. The reversal of 408872 is 278804.

It can be written as a sum of positive squares in only one way, i.e., 244036 + 164836 = 494^2 + 406^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25547 + ... + 25562.

2⁴⁰⁸⁸⁷² is an apocalyptic number.

It is an amenable number.

408872 is a deficient number, since it is larger than the sum of its proper divisors (357778).

408872 is a wasteful number, since it uses less digits than its factorization.

408872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51115 (or 51111 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 408872 is about 639.4309970591. The cubic root of 408872 is about 74.2213968511.

The spelling of 408872 in words is "four hundred eight thousand, eight hundred seventy-two".