1597732972 has 24 divisors (see below), whose sum is σ = 3088834560. Its totient is φ = 717047760.

The previous prime is 1597732967. The next prime is 1597732999. The reversal of 1597732972 is 2792377951.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 226348 + ... + 233299.

It is an arithmetic number, because the mean of its divisors is an integer number (128701440).

Almost surely, 2^1597732972 is an apocalyptic number.

It is an amenable number.

1597732972 is a deficient number, since it is larger than the sum of its proper divisors (1491101588).

1597732972 is a wasteful number, since it uses less digits than its factorization.

1597732972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459741 (or 459739 counting only the distinct ones).

The product of its digits is 1666980, while the sum is 52.

The square root of 1597732972 is about 39971.6521049606. The cubic root of 1597732972 is about 1169.0544316742.

The spelling of 1597732972 in words is "one billion, five hundred ninety-seven million, seven hundred thirty-two thousand, nine hundred seventy-two".