398887895070 has 96 divisors (see below), whose sum is σ = 1185511541760. Its totient is φ = 91155556800.

The previous prime is 398887895069. The next prime is 398887895099. The reversal of 398887895070 is 70598788893.

398887895070 is a `hidden beast` number, since 39 + 8 + 8 + 8 + 7 + 89 + 507 + 0 = 666.

It is a super-2 number, since 2×398887895070² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 398887895070.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 3111745 + ... + 3237395.

It is an arithmetic number, because the mean of its divisors is an integer number (12349078560).

Almost surely, 2^398887895070 is an apocalyptic number.

398887895070 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

398887895070 is an abundant number, since it is smaller than the sum of its proper divisors (786623646690).

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

398887895070 is a wasteful number, since it uses less digits than its factorization.

398887895070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130710 (or 130707 counting only the distinct ones).

The product of its (nonzero) digits is 243855360, while the sum is 72.

The spelling of 398887895070 in words is "three hundred ninety-eight billion, eight hundred eighty-seven million, eight hundred ninety-five thousand, seventy".