2201990 has 32 divisors (see below), whose sum is σ = 4596480. Its totient is φ = 743904.

The previous prime is 2201989. The next prime is 2202007. The reversal of 2201990 is 991022.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5621 + ... + 5999.

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

2^2201990 is an apocalyptic number.

2201990 is an abundant number, since it is smaller than the sum of its proper divisors (2394490).

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

2201990 is a wasteful number, since it uses less digits than its factorization.

2201990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 2201990 is about 1483.9103746521. The cubic root of 2201990 is about 130.0983476699.

The spelling of 2201990 in words is "two million, two hundred one thousand, nine hundred ninety".