2899980 has 36 divisors (see below), whose sum is σ = 8797152. Its totient is φ = 773280.

The previous prime is 2899943. The next prime is 2899991. The reversal of 2899980 is 899982.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 7876 + ... + 8235.

2^2899980 is an apocalyptic number.

2899980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2899980 is an abundant number, since it is smaller than the sum of its proper divisors (5897172).

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

2899980 is a wasteful number, since it uses less digits than its factorization.

2899980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16126 (or 16121 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The square root of 2899980 is about 1702.9327643803. The cubic root of 2899980 is about 142.6039868875.

The spelling of 2899980 in words is "two million, eight hundred ninety-nine thousand, nine hundred eighty".