408398874 has 64 divisors (see below), whose sum is σ = 898007040. Its totient is φ = 123065280.

The previous prime is 408398789. The next prime is 408398891. The reversal of 408398874 is 478893804.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1176769 + ... + 1177115.

It is an arithmetic number, because the mean of its divisors is an integer number (14031360).

Almost surely, 2^408398874 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 408398874, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (449003520).

408398874 is an abundant number, since it is smaller than the sum of its proper divisors (489608166).

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

408398874 is a wasteful number, since it uses less digits than its factorization.

408398874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635.

The product of its (nonzero) digits is 1548288, while the sum is 51.

The square root of 408398874 is about 20208.8810674911. The cubic root of 408398874 is about 741.9275738599.

The spelling of 408398874 in words is "four hundred eight million, three hundred ninety-eight thousand, eight hundred seventy-four".