408516 has 24 divisors (see below), whose sum is σ = 971040. Its totient is φ = 133632.

The previous prime is 408497. The next prime is 408533. The reversal of 408516 is 615804.

It is an unprimeable number.

408516 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 420 + ... + 996.

It is an arithmetic number, because the mean of its divisors is an integer number (40460).

2⁴⁰⁸⁵¹⁶ is an apocalyptic number.

It is an amenable number.

408516 is an abundant number, since it is smaller than the sum of its proper divisors (562524).

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

408516 is a wasteful number, since it uses less digits than its factorization.

408516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643 (or 641 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 408516 is about 639.1525639470. The cubic root of 408516 is about 74.1998493663.

The spelling of 408516 in words is "four hundred eight thousand, five hundred sixteen".