398888036974 has 32 divisors (see below), whose sum is σ = 695461478400. Its totient is φ = 168039191520.

The previous prime is 398888036947. The next prime is 398888036977. The reversal of 398888036974 is 479630888893.

It is a super-2 number, since 2×398888036974² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 398888036897 and 398888036906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398888036977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16903864 + ... + 16927444.

It is an arithmetic number, because the mean of its divisors is an integer number (21733171200).

Almost surely, 2^398888036974 is an apocalyptic number.

398888036974 is a deficient number, since it is larger than the sum of its proper divisors (296573441426).

398888036974 is a wasteful number, since it uses less digits than its factorization.

398888036974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44128.

The product of its (nonzero) digits is 501645312, while the sum is 73.

The spelling of 398888036974 in words is "three hundred ninety-eight billion, eight hundred eighty-eight million, thirty-six thousand, nine hundred seventy-four".