2900556 has 48 divisors (see below), whose sum is σ = 7620480. Its totient is φ = 954000.

The previous prime is 2900533. The next prime is 2900581. The reversal of 2900556 is 6550092.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11431 + ... + 11681.

It is an arithmetic number, because the mean of its divisors is an integer number (158760).

2^2900556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2900556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3810240).

2900556 is an abundant number, since it is smaller than the sum of its proper divisors (4719924).

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

2900556 is a wasteful number, since it uses less digits than its factorization.

2900556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 2900556 is about 1703.1018759898. The cubic root of 2900556 is about 142.6134276950.

The spelling of 2900556 in words is "two million, nine hundred thousand, five hundred fifty-six".