1249928796 has 48 divisors (see below), whose sum is σ = 2976559488. Its totient is φ = 408120000.

The previous prime is 1249928759. The next prime is 1249928819. The reversal of 1249928796 is 6978299421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180331 + ... + 187133.

It is an arithmetic number, because the mean of its divisors is an integer number (62011656).

Almost surely, 2^1249928796 is an apocalyptic number.

It is an amenable number.

1249928796 is an abundant number, since it is smaller than the sum of its proper divisors (1726630692).

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

1249928796 is a wasteful number, since it uses less digits than its factorization.

1249928796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7122 (or 7120 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 57.

The square root of 1249928796 is about 35354.3320683619. The cubic root of 1249928796 is about 1077.1968907119.

The spelling of 1249928796 in words is "one billion, two hundred forty-nine million, nine hundred twenty-eight thousand, seven hundred ninety-six".