1397611732 has 48 divisors (see below), whose sum is σ = 2772806400. Its totient is φ = 610565760.

The previous prime is 1397611727. The next prime is 1397611739. The reversal of 1397611732 is 2371167931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1397611739) 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 15 ways as a sum of consecutive naturals, for example, 289813 + ... + 294595.

It is an arithmetic number, because the mean of its divisors is an integer number (57766800).

Almost surely, 2^1397611732 is an apocalyptic number.

It is an amenable number.

1397611732 is a deficient number, since it is larger than the sum of its proper divisors (1375194668).

1397611732 is a wasteful number, since it uses less digits than its factorization.

1397611732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5056 (or 5054 counting only the distinct ones).

The product of its digits is 47628, while the sum is 40.

The square root of 1397611732 is about 37384.6456717193. The cubic root of 1397611732 is about 1118.0524540616.

The spelling of 1397611732 in words is "one billion, three hundred ninety-seven million, six hundred eleven thousand, seven hundred thirty-two".