398574792 has 192 divisors, whose sum is σ = 1425340800. Its totient is φ = 97413120.

The previous prime is 398574791. The next prime is 398574821. The reversal of 398574792 is 297475893.

It is not an unprimeable number, because it can be changed into a prime (398574791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 92134 + ... + 96362.

It is an arithmetic number, because the mean of its divisors is an integer number (7423650).

Almost surely, 2^398574792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 398574792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (712670400).

398574792 is an abundant number, since it is smaller than the sum of its proper divisors (1026766008).

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

398574792 is a wasteful number, since it uses less digits than its factorization.

398574792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4276 (or 4269 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 54.

The square root of 398574792 is about 19964.3380055538. The cubic root of 398574792 is about 735.9301731565.

The spelling of 398574792 in words is "three hundred ninety-eight million, five hundred seventy-four thousand, seven hundred ninety-two".