298138995 has 256 divisors, whose sum is σ = 729907200. Its totient is φ = 111767040.

The previous prime is 298138963. The next prime is 298139021. The reversal of 298138995 is 599831892.

It is not a de Polignac number, because 298138995 - 2⁵ = 298138963 is a prime.

It is a super-2 number, since 2×298138995² = 177773720679220050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 6933444 + ... + 6933486.

It is an arithmetic number, because the mean of its divisors is an integer number (2851200).

Almost surely, 2^298138995 is an apocalyptic number.

298138995 is an abundant number, since it is smaller than the sum of its proper divisors (431768205).

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

298138995 is a wasteful number, since it uses less digits than its factorization.

298138995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 121 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 54.

The square root of 298138995 is about 17266.7019143784. The cubic root of 298138995 is about 668.0458355667.

The spelling of 298138995 in words is "two hundred ninety-eight million, one hundred thirty-eight thousand, nine hundred ninety-five".