298257081 has 8 divisors (see below), whose sum is σ = 398280384. Its totient is φ = 198535920.

The previous prime is 298257019. The next prime is 298257101. The reversal of 298257081 is 180752892.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 298257081 - 2⁷ = 298256953 is a prime.

It is a super-2 number, since 2×298257081² = 177914572733281122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (298257181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73221 + ... + 77186.

It is an arithmetic number, because the mean of its divisors is an integer number (49785048).

Almost surely, 2^298257081 is an apocalyptic number.

It is an amenable number.

298257081 is a deficient number, since it is larger than the sum of its proper divisors (100023303).

298257081 is a wasteful number, since it uses less digits than its factorization.

298257081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151071.

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 298257081 is about 17270.1210476360. The cubic root of 298257081 is about 668.1340231224.

The spelling of 298257081 in words is "two hundred ninety-eight million, two hundred fifty-seven thousand, eighty-one".