2889990432 has 72 divisors (see below), whose sum is σ = 9392475456. Its totient is φ = 825710976.

The previous prime is 2889990427. The next prime is 2889990449. The reversal of 2889990432 is 2340999882.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 714748 + ... + 718779.

It is an arithmetic number, because the mean of its divisors is an integer number (130451048).

Almost surely, 2^2889990432 is an apocalyptic number.

It is an amenable number.

2889990432 is an abundant number, since it is smaller than the sum of its proper divisors (6502485024).

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

2889990432 is a wasteful number, since it uses less digits than its factorization.

2889990432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1433550 (or 1433539 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The square root of 2889990432 is about 53758.6312325751. The cubic root of 2889990432 is about 1424.4005574760.

The spelling of 2889990432 in words is "two billion, eight hundred eighty-nine million, nine hundred ninety thousand, four hundred thirty-two".