298615491 has 20 divisors (see below), whose sum is σ = 451464552. Its totient is φ = 196674048.

The previous prime is 298615469. The next prime is 298615501. The reversal of 298615491 is 194516892.

298615491 is a `hidden beast` number, since 29 + 8 + 615 + 4 + 9 + 1 = 666.

It is not a de Polignac number, because 298615491 - 2¹⁰ = 298614467 is a prime.

It is a super-2 number, since 2×298615491² = 178342422930342162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (298615411) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15486 + ... + 28931.

Almost surely, 2^298615491 is an apocalyptic number.

298615491 is a deficient number, since it is larger than the sum of its proper divisors (152849061).

298615491 is an equidigital number, since it uses as much as digits as its factorization.

298615491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44512 (or 44503 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 298615491 is about 17280.4945241738. The cubic root of 298615491 is about 668.4015440788.

The spelling of 298615491 in words is "two hundred ninety-eight million, six hundred fifteen thousand, four hundred ninety-one".