2220630 has 16 divisors (see below), whose sum is σ = 5329584. Its totient is φ = 592160.

The previous prime is 2220553. The next prime is 2220643. The reversal of 2220630 is 360222.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36981 + ... + 37040.

It is an arithmetic number, because the mean of its divisors is an integer number (333099).

2^2220630 is an apocalyptic number.

2220630 is an abundant number, since it is smaller than the sum of its proper divisors (3108954).

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

2220630 is a wasteful number, since it uses less digits than its factorization.

2220630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74031.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 2220630 is about 1490.1778417357. The cubic root of 2220630 is about 130.4644138961.

Adding to 2220630 its reverse (360222), we get a palindrome (2580852).

It can be divided in two parts, 2220 and 630, that added together give a triangular number (2850 = T₇₅).

The spelling of 2220630 in words is "two million, two hundred twenty thousand, six hundred thirty".