298312540 has 24 divisors (see below), whose sum is σ = 659428560. Its totient is φ = 113044608.

The previous prime is 298312523. The next prime is 298312561. The reversal of 298312540 is 45213892.

It is a junction number, because it is equal to n+sod(n) for n = 298312496 and 298312505.

It is a congruent number.

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, 392137 + ... + 392896.

It is an arithmetic number, because the mean of its divisors is an integer number (27476190).

Almost surely, 2^298312540 is an apocalyptic number.

298312540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

298312540 is an abundant number, since it is smaller than the sum of its proper divisors (361116020).

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

298312540 is a wasteful number, since it uses less digits than its factorization.

298312540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785061 (or 785059 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 298312540 is about 17271.7266073777. The cubic root of 298312540 is about 668.1754323079.

The spelling of 298312540 in words is "two hundred ninety-eight million, three hundred twelve thousand, five hundred forty".