297628868 has 12 divisors (see below), whose sum is σ = 521191440. Its totient is φ = 148717032.

The previous prime is 297628853. The next prime is 297628871. The reversal of 297628868 is 868826792.

It is a super-2 number, since 2×297628868² = 177165886133922848, which contains 22 as substring.

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, 17246 + ... + 29877.

It is an arithmetic number, because the mean of its divisors is an integer number (43432620).

Almost surely, 2^297628868 is an apocalyptic number.

It is an amenable number.

297628868 is a deficient number, since it is larger than the sum of its proper divisors (223562572).

297628868 is a wasteful number, since it uses less digits than its factorization.

297628868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48706 (or 48704 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 56.

The square root of 297628868 is about 17251.9236028914. The cubic root of 297628868 is about 667.6646008900.

The spelling of 297628868 in words is "two hundred ninety-seven million, six hundred twenty-eight thousand, eight hundred sixty-eight".