2990745 has 24 divisors (see below), whose sum is σ = 5313672. Its totient is φ = 1555200.

The previous prime is 2990719. The next prime is 2990749. The reversal of 2990745 is 5470992.

2990745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 97344 + 2893401 = 312^2 + 1701^2 .

It is not a de Polignac number, because 2990745 - 2¹⁷ = 2859673 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2990749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1035 + ... + 2655.

It is an arithmetic number, because the mean of its divisors is an integer number (221403).

2^2990745 is an apocalyptic number.

It is an amenable number.

2990745 is a deficient number, since it is larger than the sum of its proper divisors (2322927).

2990745 is a wasteful number, since it uses less digits than its factorization.

2990745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673 (or 1670 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 2990745 is about 1729.3770554740. The cubic root of 2990745 is about 144.0764929245.

The spelling of 2990745 in words is "two million, nine hundred ninety thousand, seven hundred forty-five".