2900399128 has 24 divisors (see below), whose sum is σ = 5933668140. Its totient is φ = 1318133600.

The previous prime is 2900399119. The next prime is 2900399141. The reversal of 2900399128 is 8219930092.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 502338 + ... + 508078.

Almost surely, 2^2900399128 is an apocalyptic number.

It is an amenable number.

2900399128 is an abundant number, since it is smaller than the sum of its proper divisors (3033269012).

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

2900399128 is an frugal number, since it uses more digits than its factorization.

2900399128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11499 (or 5754 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 2900399128 is about 53855.3537542926. The cubic root of 2900399128 is about 1426.1085664113.

The spelling of 2900399128 in words is "two billion, nine hundred million, three hundred ninety-nine thousand, one hundred twenty-eight".