397002272 has 12 divisors (see below), whose sum is σ = 781598286. Its totient is φ = 198501120.

The previous prime is 397002271. The next prime is 397002293. The reversal of 397002272 is 272200793.

It can be written as a sum of positive squares in only one way, i.e., 396647056 + 355216 = 19916^2 + 596^2 .

It is a super-2 number, since 2×397002272² = 315221607946323968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 12406321 = 397002272 / (3 + 9 + 7 + 0 + 0 + 2 + 2 + 7 + 2).

It is not an unprimeable number, because it can be changed into a prime (397002271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6203129 + ... + 6203192.

Almost surely, 2^397002272 is an apocalyptic number.

397002272 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

397002272 is a deficient number, since it is larger than the sum of its proper divisors (384596014).

397002272 is a wasteful number, since it uses less digits than its factorization.

397002272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12406331 (or 12406323 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 397002272 is about 19924.9158592954. The cubic root of 397002272 is about 734.9610616915.

The spelling of 397002272 in words is "three hundred ninety-seven million, two thousand, two hundred seventy-two".