2220658 has 16 divisors (see below), whose sum is σ = 3659616. Its totient is φ = 1002240.

The previous prime is 2220653. The next prime is 2220661. The reversal of 2220658 is 8560222.

It is not an unprimeable number, because it can be changed into a prime (2220653) 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, 3985 + ... + 4507.

It is an arithmetic number, because the mean of its divisors is an integer number (228726).

2^2220658 is an apocalyptic number.

2220658 is a deficient number, since it is larger than the sum of its proper divisors (1438958).

2220658 is a wasteful number, since it uses less digits than its factorization.

2220658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 2220658 is about 1490.1872365579. The cubic root of 2220658 is about 130.4649622372.

The spelling of 2220658 in words is "two million, two hundred twenty thousand, six hundred fifty-eight".