2990556 has 18 divisors (see below), whose sum is σ = 7559552. Its totient is φ = 996840.

The previous prime is 2990551. The next prime is 2990557. The reversal of 2990556 is 6550992.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 83071 = 2990556 / (2 + 9 + 9 + 0 + 5 + 5 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 2990556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2990551) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41500 + ... + 41571.

2^2990556 is an apocalyptic number.

It is an amenable number.

2990556 is an abundant number, since it is smaller than the sum of its proper divisors (4568996).

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

2990556 is a wasteful number, since it uses less digits than its factorization.

2990556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83081 (or 83076 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 2990556 is about 1729.3224106568. The cubic root of 2990556 is about 144.0734578913.

The spelling of 2990556 in words is "two million, nine hundred ninety thousand, five hundred fifty-six".