1397330056 has 16 divisors (see below), whose sum is σ = 2621782800. Its totient is φ = 698187984.

The previous prime is 1397330047. The next prime is 1397330083. The reversal of 1397330056 is 6500337931.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1397329997 and 1397330024.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47026 + ... + 70753.

It is an arithmetic number, because the mean of its divisors is an integer number (163861425).

Almost surely, 2^1397330056 is an apocalyptic number.

It is an amenable number.

1397330056 is a deficient number, since it is larger than the sum of its proper divisors (1224452744).

1397330056 is a wasteful number, since it uses less digits than its factorization.

1397330056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119268 (or 119264 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 37.

The square root of 1397330056 is about 37380.8782133325. The cubic root of 1397330056 is about 1117.9773378961.

Adding to 1397330056 its reverse (6500337931), we get a palindrome (7897667987).

The spelling of 1397330056 in words is "one billion, three hundred ninety-seven million, three hundred thirty thousand, fifty-six".