398728269960 has 32 divisors (see below), whose sum is σ = 1196184810240. Its totient is φ = 106327538624.

The previous prime is 398728269943. The next prime is 398728269983. The reversal of 398728269960 is 69962827893.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1661367672 + ... + 1661367911.

It is an arithmetic number, because the mean of its divisors is an integer number (37380775320).

Almost surely, 2^398728269960 is an apocalyptic number.

398728269960 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

398728269960 is an abundant number, since it is smaller than the sum of its proper divisors (797456540280).

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

398728269960 is a wasteful number, since it uses less digits than its factorization.

398728269960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3322735597 (or 3322735593 counting only the distinct ones).

The product of its (nonzero) digits is 141087744, while the sum is 69.

The spelling of 398728269960 in words is "three hundred ninety-eight billion, seven hundred twenty-eight million, two hundred sixty-nine thousand, nine hundred sixty".