397571449444 has 12 divisors (see below), whose sum is σ = 749269270204. Its totient is φ = 183494515104.

The previous prime is 397571449417. The next prime is 397571449453. The reversal of 397571449444 is 444944175793.

It can be written as a sum of positive squares in 2 ways, for example, as 171033527844 + 226537921600 = 413562^2 + 475960^2 .

It is a hoax number, since the sum of its digits (61) coincides with the sum of the digits of its distinct prime factors.

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 3 ways as a sum of consecutive naturals, for example, 3822802347 + ... + 3822802450.

Almost surely, 2^397571449444 is an apocalyptic number.

It is an amenable number.

397571449444 is a deficient number, since it is larger than the sum of its proper divisors (351697820760).

397571449444 is a wasteful number, since it uses less digits than its factorization.

397571449444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7645604814 (or 7645604812 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 61.

The spelling of 397571449444 in words is "three hundred ninety-seven billion, five hundred seventy-one million, four hundred forty-nine thousand, four hundred forty-four".