398393970348 has 48 divisors (see below), whose sum is σ = 1041501694464. Its totient is φ = 117462594240.

The previous prime is 398393970323. The next prime is 398393970353. The reversal of 398393970348 is 843079393893.

It is a super-2 number, since 2×398393970348² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

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 15 ways as a sum of consecutive naturals, for example, 40780740 + ... + 40790507.

It is an arithmetic number, because the mean of its divisors is an integer number (21697951968).

Almost surely, 2^398393970348 is an apocalyptic number.

It is an amenable number.

398393970348 is an abundant number, since it is smaller than the sum of its proper divisors (643107724116).

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

398393970348 is a wasteful number, since it uses less digits than its factorization.

398393970348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81571302 (or 81571300 counting only the distinct ones).

The product of its (nonzero) digits is 105815808, while the sum is 66.

The spelling of 398393970348 in words is "three hundred ninety-eight billion, three hundred ninety-three million, nine hundred seventy thousand, three hundred forty-eight".