2872831644 has 24 divisors (see below), whose sum is σ = 7448082320. Its totient is φ = 957610512.

The previous prime is 2872831639. The next prime is 2872831691. The reversal of 2872831644 is 4461382782.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2872831644.

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, 13300039 + ... + 13300254.

Almost surely, 2^2872831644 is an apocalyptic number.

It is an amenable number.

2872831644 is an abundant number, since it is smaller than the sum of its proper divisors (4575250676).

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

2872831644 is a wasteful number, since it uses less digits than its factorization.

2872831644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26600306 (or 26600298 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 2872831644 is about 53598.8026358798. The cubic root of 2872831644 is about 1421.5759208265.

The spelling of 2872831644 in words is "two billion, eight hundred seventy-two million, eight hundred thirty-one thousand, six hundred forty-four".