2290212 has 18 divisors (see below), whose sum is σ = 5789238. Its totient is φ = 763392.

The previous prime is 2290207. The next prime is 2290213. The reversal of 2290212 is 2120922.

It can be written as a sum of positive squares in only one way, i.e., 2005056 + 285156 = 1416^2 + 534^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2290213) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31773 + ... + 31844.

2^2290212 is an apocalyptic number.

It is an amenable number.

2290212 is an abundant number, since it is smaller than the sum of its proper divisors (3499026).

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

2290212 is a wasteful number, since it uses less digits than its factorization.

2290212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63627 (or 63622 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 2290212 is about 1513.3446401927. The cubic root of 2290212 is about 131.8130963627.

The spelling of 2290212 in words is "two million, two hundred ninety thousand, two hundred twelve".