2799999990 has 48 divisors (see below), whose sum is σ = 7596527328. Its totient is φ = 714202368.

The previous prime is 2799999973. The next prime is 2800000051. The reversal of 2799999990 is 999999972.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 674259 + ... + 678398.

It is an arithmetic number, because the mean of its divisors is an integer number (158260986).

Almost surely, 2^2799999990 is an apocalyptic number.

2799999990 is an abundant number, since it is smaller than the sum of its proper divisors (4796527338).

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

2799999990 is a wasteful number, since it uses less digits than its factorization.

2799999990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352693 (or 1352690 counting only the distinct ones).

The product of its (nonzero) digits is 66961566, while the sum is 72.

The square root of 2799999990 is about 52915.0261268007. The cubic root of 2799999990 is about 1409.4597447351.

The spelling of 2799999990 in words is "two billion, seven hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety".