397376744 has 16 divisors (see below), whose sum is σ = 765219300. Its totient is φ = 193318272.

The previous prime is 397376743. The next prime is 397376747. The reversal of 397376744 is 447673793.

It can be written as a sum of positive squares in 2 ways, for example, as 292068100 + 105308644 = 17090^2 + 10262^2 .

It is a junction number, because it is equal to n+sod(n) for n = 397376692 and 397376701.

It is not an unprimeable number, because it can be changed into a prime (397376743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 670949 + ... + 671540.

Almost surely, 2^397376744 is an apocalyptic number.

It is an amenable number.

397376744 is a deficient number, since it is larger than the sum of its proper divisors (367842556).

397376744 is a wasteful number, since it uses less digits than its factorization.

397376744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342532 (or 1342528 counting only the distinct ones).

The product of its digits is 2667168, while the sum is 50.

The square root of 397376744 is about 19934.3107229721. The cubic root of 397376744 is about 735.1920728376.

The spelling of 397376744 in words is "three hundred ninety-seven million, three hundred seventy-six thousand, seven hundred forty-four".