298939240 has 32 divisors (see below), whose sum is σ = 678575880. Its totient is φ = 118515712.

The previous prime is 298939219. The next prime is 298939273. The reversal of 298939240 is 42939892.

It can be written as a sum of positive squares in 4 ways, for example, as 198979236 + 99960004 = 14106^2 + 9998^2 .

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, 28549 + ... + 37588.

Almost surely, 2^298939240 is an apocalyptic number.

298939240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

298939240 is an abundant number, since it is smaller than the sum of its proper divisors (379636640).

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

298939240 is a wasteful number, since it uses less digits than its factorization.

298939240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66261 (or 66257 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 298939240 is about 17289.8594557619. The cubic root of 298939240 is about 668.6430097568.

The spelling of 298939240 in words is "two hundred ninety-eight million, nine hundred thirty-nine thousand, two hundred forty".