398899296 has 48 divisors (see below), whose sum is σ = 1163458800. Its totient is φ = 132966144.

The previous prime is 398899279. The next prime is 398899301. The reversal of 398899296 is 692998893.

It is a tau number, because it is divible by the number of its divisors (48).

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

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, 229981 + ... + 231708.

It is an arithmetic number, because the mean of its divisors is an integer number (24238725).

Almost surely, 2^398899296 is an apocalyptic number.

398899296 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

398899296 is an abundant number, since it is smaller than the sum of its proper divisors (764559504).

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

398899296 is a wasteful number, since it uses less digits than its factorization.

398899296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461708 (or 461694 counting only the distinct ones).

The product of its digits is 15116544, while the sum is 63.

The square root of 398899296 is about 19972.4634434513. The cubic root of 398899296 is about 736.1298408295.

The spelling of 398899296 in words is "three hundred ninety-eight million, eight hundred ninety-nine thousand, two hundred ninety-six".