398495792 has 40 divisors (see below), whose sum is σ = 824423424. Its totient is φ = 186145344.

The previous prime is 398495789. The next prime is 398495819. The reversal of 398495792 is 297594893.

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, 3233 + ... + 28415.

Almost surely, 2^398495792 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 398495792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (412211712).

398495792 is an abundant number, since it is smaller than the sum of its proper divisors (425927632).

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

398495792 is a wasteful number, since it uses less digits than its factorization.

398495792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25257 (or 25251 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 56.

The square root of 398495792 is about 19962.3593795924. The cubic root of 398495792 is about 735.8815479663.

The spelling of 398495792 in words is "three hundred ninety-eight million, four hundred ninety-five thousand, seven hundred ninety-two".