398125771232 has 48 divisors (see below), whose sum is σ = 897778274400. Its totient is φ = 170245275648.

The previous prime is 398125771217. The next prime is 398125771249. The reversal of 398125771232 is 232177521893.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1878653 + ... + 2079804.

It is an arithmetic number, because the mean of its divisors is an integer number (18703714050).

Almost surely, 2^398125771232 is an apocalyptic number.

398125771232 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

398125771232 is an abundant number, since it is smaller than the sum of its proper divisors (499652503168).

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

398125771232 is a wasteful number, since it uses less digits than its factorization.

398125771232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3958923 (or 3958915 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 50.

The spelling of 398125771232 in words is "three hundred ninety-eight billion, one hundred twenty-five million, seven hundred seventy-one thousand, two hundred thirty-two".