2989090 has 16 divisors (see below), whose sum is σ = 5794488. Its totient is φ = 1103616.

The previous prime is 2989087. The next prime is 2989097. The reversal of 2989090 is 909892.

It can be written as a sum of positive squares in 4 ways, for example, as 2337841 + 651249 = 1529^2 + 807^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2989097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11367 + ... + 11626.

2^2989090 is an apocalyptic number.

2989090 is a deficient number, since it is larger than the sum of its proper divisors (2805398).

2989090 is a wasteful number, since it uses less digits than its factorization.

2989090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23013.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 2989090 is about 1728.8984932610. The cubic root of 2989090 is about 144.0499119675.

The spelling of 2989090 in words is "two million, nine hundred eighty-nine thousand, ninety".