398975274418 has 8 divisors (see below), whose sum is σ = 683957613312. Its totient is φ = 170989403316.

The previous prime is 398975274377. The next prime is 398975274421. The reversal of 398975274418 is 814472579893.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14249116930 + ... + 14249116957.

It is an arithmetic number, because the mean of its divisors is an integer number (85494701664).

Almost surely, 2^398975274418 is an apocalyptic number.

398975274418 is a deficient number, since it is larger than the sum of its proper divisors (284982338894).

398975274418 is a wasteful number, since it uses less digits than its factorization.

398975274418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28498233896.

The product of its digits is 121927680, while the sum is 67.

The spelling of 398975274418 in words is "three hundred ninety-eight billion, nine hundred seventy-five million, two hundred seventy-four thousand, four hundred eighteen".