2799734640 has 40 divisors (see below), whose sum is σ = 8679178128. Its totient is φ = 746595840.

The previous prime is 2799734633. The next prime is 2799734657. The reversal of 2799734640 is 464379972.

It is a tau number, because it is divible by the number of its divisors (40).

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, 5832541 + ... + 5833020.

Almost surely, 2^2799734640 is an apocalyptic number.

2799734640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2799734640 is an abundant number, since it is smaller than the sum of its proper divisors (5879443488).

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

2799734640 is a wasteful number, since it uses less digits than its factorization.

2799734640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11665577 (or 11665571 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 51.

The square root of 2799734640 is about 52912.5187455672. The cubic root of 2799734640 is about 1409.4152195018.

The spelling of 2799734640 in words is "two billion, seven hundred ninety-nine million, seven hundred thirty-four thousand, six hundred forty".