2906990 has 16 divisors (see below), whose sum is σ = 5270400. Its totient is φ = 1154400.

The previous prime is 2906987. The next prime is 2906999. The reversal of 2906990 is 996092.

It is a self number, because there is not a number n which added to its sum of digits gives 2906990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2906999) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 515 + ... + 2465.

It is an arithmetic number, because the mean of its divisors is an integer number (329400).

2^2906990 is an apocalyptic number.

2906990 is a deficient number, since it is larger than the sum of its proper divisors (2363410).

2906990 is a wasteful number, since it uses less digits than its factorization.

2906990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2107.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 2906990 is about 1704.9897360395. The cubic root of 2906990 is about 142.7187979729.

Adding to 2906990 its sum of digits (35), we get a square (2907025 = 1705²).

The spelling of 2906990 in words is "two million, nine hundred six thousand, nine hundred ninety".