398176752 has 20 divisors (see below), whose sum is σ = 1028623400. Its totient is φ = 132725568.

The previous prime is 398176747. The next prime is 398176763. The reversal of 398176752 is 257671893.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 8295349 = 398176752 / (3 + 9 + 8 + 1 + 7 + 6 + 7 + 5 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4147627 + ... + 4147722.

It is an arithmetic number, because the mean of its divisors is an integer number (51431170).

Almost surely, 2^398176752 is an apocalyptic number.

It is an amenable number.

398176752 is an abundant number, since it is smaller than the sum of its proper divisors (630446648).

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

398176752 is a wasteful number, since it uses less digits than its factorization.

398176752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8295360 (or 8295354 counting only the distinct ones).

The product of its digits is 635040, while the sum is 48.

The square root of 398176752 is about 19954.3667401399. The cubic root of 398176752 is about 735.6851106502.

The spelling of 398176752 in words is "three hundred ninety-eight million, one hundred seventy-six thousand, seven hundred fifty-two".