2303990 has 32 divisors (see below), whose sum is σ = 4596480. Its totient is φ = 825984.

The previous prime is 2303989. The next prime is 2303999. The reversal of 2303990 is 993032.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2303999) 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 15 ways as a sum of consecutive naturals, for example, 4571 + ... + 5049.

It is an arithmetic number, because the mean of its divisors is an integer number (143640).

2^2303990 is an apocalyptic number.

2303990 is a deficient number, since it is larger than the sum of its proper divisors (2292490).

2303990 is a wasteful number, since it uses less digits than its factorization.

2303990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536.

The product of its (nonzero) digits is 1458, while the sum is 26.

The square root of 2303990 is about 1517.8899828380. The cubic root of 2303990 is about 132.0768988718.

The spelling of 2303990 in words is "two million, three hundred three thousand, nine hundred ninety".