1649012796 has 24 divisors (see below), whose sum is σ = 4275218640. Its totient is φ = 549670896.

The previous prime is 1649012779. The next prime is 1649012803. The reversal of 1649012796 is 6972109461.

It is a congruent 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, 7634211 + ... + 7634426.

It is an arithmetic number, because the mean of its divisors is an integer number (178134110).

Almost surely, 2^1649012796 is an apocalyptic number.

It is an amenable number.

1649012796 is an abundant number, since it is smaller than the sum of its proper divisors (2626205844).

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

1649012796 is a wasteful number, since it uses less digits than its factorization.

1649012796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15268650 (or 15268642 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 1649012796 is about 40608.0385638115. The cubic root of 1649012796 is about 1181.4300377639.

The spelling of 1649012796 in words is "one billion, six hundred forty-nine million, twelve thousand, seven hundred ninety-six".