2981090 has 32 divisors (see below), whose sum is σ = 6303744. Its totient is φ = 993600.

The previous prime is 2981089. The next prime is 2981123. The reversal of 2981090 is 901892.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2015 + ... + 3165.

It is an arithmetic number, because the mean of its divisors is an integer number (196992).

2^2981090 is an apocalyptic number.

2981090 is an abundant number, since it is smaller than the sum of its proper divisors (3322654).

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

2981090 is a wasteful number, since it uses less digits than its factorization.

2981090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 2981090 is about 1726.5833313223. The cubic root of 2981090 is about 143.9212854267.

The spelling of 2981090 in words is "two million, nine hundred eighty-one thousand, ninety".