1225796992 has 32 divisors (see below), whose sum is σ = 2790879120. Its totient is φ = 525341184.

The previous prime is 1225796963. The next prime is 1225797007. The reversal of 1225796992 is 2996975221.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

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, 683143 + ... + 684934.

Almost surely, 2^1225796992 is an apocalyptic number.

It is an amenable number.

1225796992 is an abundant number, since it is smaller than the sum of its proper divisors (1565082128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1225796992 is an equidigital number, since it uses as much as digits as its factorization.

1225796992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368098 (or 1368086 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 52.

The square root of 1225796992 is about 35011.3837487181. The cubic root of 1225796992 is about 1070.2194769160.

The spelling of 1225796992 in words is "one billion, two hundred twenty-five million, seven hundred ninety-six thousand, nine hundred ninety-two".