2869869640 has 64 divisors (see below), whose sum is σ = 7271493120. Its totient is φ = 1009920000.

The previous prime is 2869869617. The next prime is 2869869677. The reversal of 2869869640 is 469689682.

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, 91561 + ... + 118840.

It is an arithmetic number, because the mean of its divisors is an integer number (113617080).

Almost surely, 2^2869869640 is an apocalyptic number.

2869869640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2869869640 is an abundant number, since it is smaller than the sum of its proper divisors (4401623480).

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

2869869640 is a wasteful number, since it uses less digits than its factorization.

2869869640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210454 (or 210450 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 58.

The square root of 2869869640 is about 53571.1642583956. The cubic root of 2869869640 is about 1421.0871856628.

The spelling of 2869869640 in words is "two billion, eight hundred sixty-nine million, eight hundred sixty-nine thousand, six hundred forty".