398932416 has 42 divisors (see below), whose sum is σ = 1143469392. Its totient is φ = 132977280.

The previous prime is 398932411. The next prime is 398932423. The reversal of 398932416 is 614239893.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398932411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 345720 + ... + 346871.

Almost surely, 2^398932416 is an apocalyptic number.

398932416 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

398932416 is an abundant number, since it is smaller than the sum of its proper divisors (744536976).

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

398932416 is a wasteful number, since it uses less digits than its factorization.

398932416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692609 (or 692596 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 398932416 is about 19973.2925678267. The cubic root of 398932416 is about 736.1502135116.

The spelling of 398932416 in words is "three hundred ninety-eight million, nine hundred thirty-two thousand, four hundred sixteen".