1215793996 has 24 divisors (see below), whose sum is σ = 2140210800. Its totient is φ = 604316352.

The previous prime is 1215793967. The next prime is 1215794081. The reversal of 1215793996 is 6993975121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 622830 + ... + 624778.

It is an arithmetic number, because the mean of its divisors is an integer number (89175450).

Almost surely, 2^1215793996 is an apocalyptic number.

It is an amenable number.

1215793996 is a deficient number, since it is larger than the sum of its proper divisors (924416804).

1215793996 is a wasteful number, since it uses less digits than its factorization.

1215793996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2793 (or 2791 counting only the distinct ones).

The product of its digits is 918540, while the sum is 52.

The square root of 1215793996 is about 34868.2376382862. The cubic root of 1215793996 is about 1067.3003818070.

The spelling of 1215793996 in words is "one billion, two hundred fifteen million, seven hundred ninety-three thousand, nine hundred ninety-six".