398516552 has 16 divisors (see below), whose sum is σ = 853964160. Its totient is φ = 170792784.

The previous prime is 398516549. The next prime is 398516617. The reversal of 398516552 is 255615893.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3558128 + ... + 3558239.

It is an arithmetic number, because the mean of its divisors is an integer number (53372760).

Almost surely, 2^398516552 is an apocalyptic number.

It is an amenable number.

398516552 is an abundant number, since it is smaller than the sum of its proper divisors (455447608).

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

398516552 is a wasteful number, since it uses less digits than its factorization.

398516552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7116380 (or 7116376 counting only the distinct ones).

The product of its digits is 324000, while the sum is 44.

The square root of 398516552 is about 19962.8793514363. The cubic root of 398516552 is about 735.8943265501.

The spelling of 398516552 in words is "three hundred ninety-eight million, five hundred sixteen thousand, five hundred fifty-two".