297643252 has 6 divisors (see below), whose sum is σ = 520875698. Its totient is φ = 148821624.

The previous prime is 297643237. The next prime is 297643271. The reversal of 297643252 is 252346792.

297643252 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 263607696 + 34035556 = 16236^2 + 5834^2 .

It is a super-2 number, since 2×297643252² = 177183010922271008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37205403 + ... + 37205410.

Almost surely, 2^297643252 is an apocalyptic number.

It is an amenable number.

297643252 is a deficient number, since it is larger than the sum of its proper divisors (223232446).

297643252 is a wasteful number, since it uses less digits than its factorization.

297643252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74410817 (or 74410815 counting only the distinct ones).

The product of its digits is 181440, while the sum is 40.

The square root of 297643252 is about 17252.3404789031. The cubic root of 297643252 is about 667.6753564920.

The spelling of 297643252 in words is "two hundred ninety-seven million, six hundred forty-three thousand, two hundred fifty-two".