398125756 has 12 divisors (see below), whose sum is σ = 796251568. Its totient is φ = 170625312.

The previous prime is 398125727. The next prime is 398125759. The reversal of 398125756 is 657521893.

398125756 is an admirable number.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398125759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7109361 + ... + 7109416.

Almost surely, 2^398125756 is an apocalyptic number.

It is an amenable number.

398125756 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

398125756 is a wasteful number, since it uses less digits than its factorization.

398125756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14218788 (or 14218786 counting only the distinct ones).

The product of its digits is 453600, while the sum is 46.

The square root of 398125756 is about 19953.0888836791. The cubic root of 398125756 is about 735.6537019860.

The spelling of 398125756 in words is "three hundred ninety-eight million, one hundred twenty-five thousand, seven hundred fifty-six".