407902398 has 16 divisors (see below), whose sum is σ = 816013440. Its totient is φ = 135932696.

The previous prime is 407902387. The next prime is 407902427. The reversal of 407902398 is 893209704.

It is a congruent number.

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, 29911 + ... + 41357.

It is an arithmetic number, because the mean of its divisors is an integer number (51000840).

Almost surely, 2^407902398 is an apocalyptic number.

407902398 is an abundant number, since it is smaller than the sum of its proper divisors (408111042).

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

407902398 is a wasteful number, since it uses less digits than its factorization.

407902398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17391.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 407902398 is about 20196.5937227048. The cubic root of 407902398 is about 741.6268069532.

The spelling of 407902398 in words is "four hundred seven million, nine hundred two thousand, three hundred ninety-eight".