1213928296 has 32 divisors (see below), whose sum is σ = 2603854080. Its totient is φ = 519739200.

The previous prime is 1213928291. The next prime is 1213928321. The reversal of 1213928296 is 6928293121.

It is not an unprimeable number, because it can be changed into a prime (1213928291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49201 + ... + 69631.

It is an arithmetic number, because the mean of its divisors is an integer number (81370440).

Almost surely, 2^1213928296 is an apocalyptic number.

It is an amenable number.

1213928296 is an abundant number, since it is smaller than the sum of its proper divisors (1389925784).

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

1213928296 is a wasteful number, since it uses less digits than its factorization.

1213928296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21505 (or 21501 counting only the distinct ones).

The product of its digits is 93312, while the sum is 43.

The square root of 1213928296 is about 34841.4737920198. The cubic root of 1213928296 is about 1066.7541594031.

The spelling of 1213928296 in words is "one billion, two hundred thirteen million, nine hundred twenty-eight thousand, two hundred ninety-six".