397045476 has 99 divisors (see below), whose sum is σ = 1068278953. Its totient is φ = 129120480.

The previous prime is 397045457. The next prime is 397045477. The reversal of 397045476 is 674540793.

The square root of 397045476 is 19926.

It is a perfect power (a square), and thus also a powerful number.

397045476 is a `hidden beast` number, since 39 + 70 + 4 + 547 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19131876 + 377913600 = 4374^2 + 19440^2 .

It is a super-2 number, since 2×397045476² = 315290220024133152, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (397045477) by changing a digit.

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 32 ways as a sum of consecutive naturals, for example, 9684016 + ... + 9684056.

Almost surely, 2^397045476 is an apocalyptic number.

397045476 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

397045476 is the 19926-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397045476

397045476 is an abundant number, since it is smaller than the sum of its proper divisors (671233477).

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

397045476 is an frugal number, since it uses more digits than its factorization.

397045476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116 (or 46 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The cubic root of 397045476 is about 734.9877215775.

The spelling of 397045476 in words is "three hundred ninety-seven million, forty-five thousand, four hundred seventy-six".