1232972778 has 16 divisors (see below), whose sum is σ = 2466473760. Its totient is φ = 410902896.

The previous prime is 1232972759. The next prime is 1232972789. The reversal of 1232972778 is 8772792321.

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, 12501 + ... + 51207.

It is an arithmetic number, because the mean of its divisors is an integer number (154154610).

Almost surely, 2^1232972778 is an apocalyptic number.

1232972778 is an abundant number, since it is smaller than the sum of its proper divisors (1233500982).

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

1232972778 is a wasteful number, since it uses less digits than its factorization.

1232972778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44021.

The product of its digits is 592704, while the sum is 48.

The square root of 1232972778 is about 35113.7121079501. The cubic root of 1232972778 is about 1072.3037614018.

The spelling of 1232972778 in words is "one billion, two hundred thirty-two million, nine hundred seventy-two thousand, seven hundred seventy-eight".