397202266 has 16 divisors (see below), whose sum is σ = 610593984. Its totient is φ = 193685184.

The previous prime is 397202257. The next prime is 397202327. The reversal of 397202266 is 662202793.

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 in 7 ways as a sum of consecutive naturals, for example, 59346 + ... + 65698.

It is an arithmetic number, because the mean of its divisors is an integer number (38162124).

Almost surely, 2^397202266 is an apocalyptic number.

397202266 is a deficient number, since it is larger than the sum of its proper divisors (213391718).

397202266 is a wasteful number, since it uses less digits than its factorization.

397202266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7125.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 397202266 is about 19929.9339186060. The cubic root of 397202266 is about 735.0844557185.

The spelling of 397202266 in words is "three hundred ninety-seven million, two hundred two thousand, two hundred sixty-six".