406880684 has 48 divisors (see below), whose sum is σ = 831501888. Its totient is φ = 170615808.

The previous prime is 406880659. The next prime is 406880699. The reversal of 406880684 is 486088604.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279302 + ... + 280754.

It is an arithmetic number, because the mean of its divisors is an integer number (17322956).

Almost surely, 2^406880684 is an apocalyptic number.

It is an amenable number.

406880684 is an abundant number, since it is smaller than the sum of its proper divisors (424621204).

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

406880684 is a wasteful number, since it uses less digits than its factorization.

406880684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674 (or 1672 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 44.

The square root of 406880684 is about 20171.2836477999. The cubic root of 406880684 is about 741.0070802478.

The spelling of 406880684 in words is "four hundred six million, eight hundred eighty thousand, six hundred eighty-four".