398837072746 has 32 divisors (see below), whose sum is σ = 691122792960. Its totient is φ = 169084337136.

The previous prime is 398837072731. The next prime is 398837072779. The reversal of 398837072746 is 647270738893.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 828225 + ... + 1218043.

It is an arithmetic number, because the mean of its divisors is an integer number (21597587280).

Almost surely, 2^398837072746 is an apocalyptic number.

398837072746 is a deficient number, since it is larger than the sum of its proper divisors (292285720214).

398837072746 is a wasteful number, since it uses less digits than its factorization.

398837072746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390618.

The product of its (nonzero) digits is 85349376, while the sum is 64.

The spelling of 398837072746 in words is "three hundred ninety-eight billion, eight hundred thirty-seven million, seventy-two thousand, seven hundred forty-six".