2219990 has 8 divisors (see below), whose sum is σ = 3996000. Its totient is φ = 887992.

The previous prime is 2219977. The next prime is 2219999. The reversal of 2219990 is 999122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2219999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110990 + ... + 111009.

It is an arithmetic number, because the mean of its divisors is an integer number (499500).

2^2219990 is an apocalyptic number.

2219990 is a deficient number, since it is larger than the sum of its proper divisors (1776010).

2219990 is a wasteful number, since it uses less digits than its factorization.

2219990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222006.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 2219990 is about 1489.9630867911. The cubic root of 2219990 is about 130.4518791278.

The spelling of 2219990 in words is "two million, two hundred nineteen thousand, nine hundred ninety".