297117490 has 8 divisors (see below), whose sum is σ = 534811500. Its totient is φ = 118846992.

The previous prime is 297117481. The next prime is 297117533. The reversal of 297117490 is 94711792.

It can be written as a sum of positive squares in 2 ways, for example, as 285981921 + 11135569 = 16911^2 + 3337^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14855865 + ... + 14855884.

Almost surely, 2^297117490 is an apocalyptic number.

297117490 is a deficient number, since it is larger than the sum of its proper divisors (237694010).

297117490 is a wasteful number, since it uses less digits than its factorization.

297117490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29711756.

The product of its (nonzero) digits is 31752, while the sum is 40.

The square root of 297117490 is about 17237.0963331995. The cubic root of 297117490 is about 667.2819938284.

The spelling of 297117490 in words is "two hundred ninety-seven million, one hundred seventeen thousand, four hundred ninety".