397028000 has 48 divisors (see below), whose sum is σ = 975507624. Its totient is φ = 158809600.

The previous prime is 397027999. The next prime is 397028003. The reversal of 397028000 is 820793.

It can be written as a sum of positive squares in 4 ways, for example, as 65351056 + 331676944 = 8084^2 + 18212^2 .

It is not an unprimeable number, because it can be changed into a prime (397028003) 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 in 7 ways as a sum of consecutive naturals, for example, 45629 + ... + 53628.

Almost surely, 2^397028000 is an apocalyptic number.

It is an amenable number.

397028000 is an abundant number, since it is smaller than the sum of its proper divisors (578479624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

397028000 is an equidigital number, since it uses as much as digits as its factorization.

397028000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99282 (or 99264 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 397028000 is about 19925.5614726411. The cubic root of 397028000 is about 734.9769378976.

Adding to 397028000 its reverse (820793), we get a palindrome (397848793).

The spelling of 397028000 in words is "three hundred ninety-seven million, twenty-eight thousand".