2222090 has 16 divisors (see below), whose sum is σ = 4307688. Its totient is φ = 820416.

The previous prime is 2222089. The next prime is 2222093. The reversal of 2222090 is 902222.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1442401 + 779689 = 1201^2 + 883^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2222093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8417 + ... + 8676.

2^2222090 is an apocalyptic number.

2222090 is a deficient number, since it is larger than the sum of its proper divisors (2085598).

2222090 is a wasteful number, since it uses less digits than its factorization.

2222090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17113.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2222090 is about 1490.6676356586. The cubic root of 2222090 is about 130.4929998251.

The spelling of 2222090 in words is "two million, two hundred twenty-two thousand, ninety".