398994603392 has 384 divisors, whose sum is σ = 1082017958400. Its totient is φ = 144466882560.

The previous prime is 398994603383. The next prime is 398994603421. The reversal of 398994603392 is 293306499893.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 69472073 + ... + 69477815.

It is an arithmetic number, because the mean of its divisors is an integer number (2817755100).

Almost surely, 2^398994603392 is an apocalyptic number.

398994603392 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 398994603392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (541008979200).

398994603392 is an abundant number, since it is smaller than the sum of its proper divisors (683023355008).

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

398994603392 is a wasteful number, since it uses less digits than its factorization.

398994603392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5854 (or 5835 counting only the distinct ones).

The product of its (nonzero) digits is 68024448, while the sum is 65.

The spelling of 398994603392 in words is "three hundred ninety-eight billion, nine hundred ninety-four million, six hundred three thousand, three hundred ninety-two".