1491275792 has 20 divisors (see below), whose sum is σ = 2890506960. Its totient is φ = 745338528.

The previous prime is 1491275777. The next prime is 1491275827. The reversal of 1491275792 is 2975721941.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25559 + ... + 60297.

It is an arithmetic number, because the mean of its divisors is an integer number (144525348).

Almost surely, 2^1491275792 is an apocalyptic number.

It is an amenable number.

1491275792 is a deficient number, since it is larger than the sum of its proper divisors (1399231168).

1491275792 is a wasteful number, since it uses less digits than its factorization.

1491275792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37430 (or 37424 counting only the distinct ones).

The product of its digits is 317520, while the sum is 47.

The square root of 1491275792 is about 38617.0401765853. The cubic root of 1491275792 is about 1142.4906538090.

The spelling of 1491275792 in words is "one billion, four hundred ninety-one million, two hundred seventy-five thousand, seven hundred ninety-two".