298830690 has 24 divisors (see below), whose sum is σ = 776960028. Its totient is φ = 79688160.

The previous prime is 298830617. The next prime is 298830733. The reversal of 298830690 is 96038892.

It can be written as a sum of positive squares in 2 ways, for example, as 296425089 + 2405601 = 17217^2 + 1551^2 .

It is a super-2 number, since 2×298830690² = 178599562571752200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1660081 + ... + 1660260.

Almost surely, 2^298830690 is an apocalyptic number.

298830690 is an abundant number, since it is smaller than the sum of its proper divisors (478129338).

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

298830690 is a wasteful number, since it uses less digits than its factorization.

298830690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3320354 (or 3320351 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 298830690 is about 17286.7200474815. The cubic root of 298830690 is about 668.5620680180.

The spelling of 298830690 in words is "two hundred ninety-eight million, eight hundred thirty thousand, six hundred ninety".