398949488352 has 96 divisors (see below), whose sum is σ = 1165153973760. Its totient is φ = 132805872000.

The previous prime is 398949488281. The next prime is 398949488381. The reversal of 398949488352 is 253884949893.

398949488352 is a `hidden beast` number, since 3 + 9 + 8 + 9 + 494 + 8 + 83 + 52 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 341443 + ... + 956285.

It is an arithmetic number, because the mean of its divisors is an integer number (12137020560).

Almost surely, 2^398949488352 is an apocalyptic number.

398949488352 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 398949488352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (582576986880).

398949488352 is an abundant number, since it is smaller than the sum of its proper divisors (766204485408).

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

398949488352 is a wasteful number, since it uses less digits than its factorization.

398949488352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615613 (or 615599 counting only the distinct ones).

The product of its digits is 537477120, while the sum is 72.

The spelling of 398949488352 in words is "three hundred ninety-eight billion, nine hundred forty-nine million, four hundred eighty-eight thousand, three hundred fifty-two".