298561980 has 48 divisors (see below), whose sum is σ = 844107264. Its totient is φ = 78841920.

The previous prime is 298561979. The next prime is 298561987. The reversal of 298561980 is 89165892.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (298561987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17976 + ... + 30335.

It is an arithmetic number, because the mean of its divisors is an integer number (17585568).

Almost surely, 2^298561980 is an apocalyptic number.

298561980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

298561980 is an abundant number, since it is smaller than the sum of its proper divisors (545545284).

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

298561980 is a wasteful number, since it uses less digits than its factorization.

298561980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48426 (or 48424 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 48.

The square root of 298561980 is about 17278.9461484200. The cubic root of 298561980 is about 668.3616165100.

The spelling of 298561980 in words is "two hundred ninety-eight million, five hundred sixty-one thousand, nine hundred eighty".