398878704032 has 12 divisors (see below), whose sum is σ = 785292448626. Its totient is φ = 199439352000.

The previous prime is 398878704013. The next prime is 398878704053. The reversal of 398878704032 is 230407878893.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 336720236176 + 62158467856 = 580276^2 + 249316^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6232479719 + ... + 6232479782.

Almost surely, 2^398878704032 is an apocalyptic number.

398878704032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

398878704032 is a deficient number, since it is larger than the sum of its proper divisors (386413744594).

398878704032 is a wasteful number, since it uses less digits than its factorization.

398878704032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12464959511 (or 12464959503 counting only the distinct ones).

The product of its (nonzero) digits is 16257024, while the sum is 59.

The spelling of 398878704032 in words is "three hundred ninety-eight billion, eight hundred seventy-eight million, seven hundred four thousand, thirty-two".