2220790 has 32 divisors (see below), whose sum is σ = 4699296. Its totient is φ = 744960.

The previous prime is 2220787. The next prime is 2220839. The reversal of 2220790 is 970222.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 654 + ... + 2206.

It is an arithmetic number, because the mean of its divisors is an integer number (146853).

2^2220790 is an apocalyptic number.

2220790 is an abundant number, since it is smaller than the sum of its proper divisors (2478506).

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

2220790 is a wasteful number, since it uses less digits than its factorization.

2220790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1584.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 2220790 is about 1490.2315256362. The cubic root of 2220790 is about 130.4675472118.

The spelling of 2220790 in words is "two million, two hundred twenty thousand, seven hundred ninety".