298977388040 has 16 divisors (see below), whose sum is σ = 672699123180. Its totient is φ = 119590955200.

The previous prime is 298977387983. The next prime is 298977388067. The reversal of 298977388040 is 40883779892.

It can be written as a sum of positive squares in 2 ways, for example, as 286167222916 + 12810165124 = 534946^2 + 113182^2 .

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, 3737217311 + ... + 3737217390.

Almost surely, 2^298977388040 is an apocalyptic number.

298977388040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

298977388040 is an abundant number, since it is smaller than the sum of its proper divisors (373721735140).

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

298977388040 is a wasteful number, since it uses less digits than its factorization.

298977388040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7474434712 (or 7474434708 counting only the distinct ones).

The product of its (nonzero) digits is 48771072, while the sum is 65.

The spelling of 298977388040 in words is "two hundred ninety-eight billion, nine hundred seventy-seven million, three hundred eighty-eight thousand, forty".