2220500 has 24 divisors (see below), whose sum is σ = 4850664. Its totient is φ = 888000.

The previous prime is 2220497. The next prime is 2220503. The reversal of 2220500 is 50222.

It is an interprime number because it is at equal distance from previous prime (2220497) and next prime (2220503).

It can be written as a sum of positive squares in 4 ways, for example, as 158404 + 2062096 = 398^2 + 1436^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220503) 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, 1721 + ... + 2720.

It is an arithmetic number, because the mean of its divisors is an integer number (202111).

2^2220500 is an apocalyptic number.

2220500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220500 is an abundant number, since it is smaller than the sum of its proper divisors (2630164).

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

2220500 is a wasteful number, since it uses less digits than its factorization.

2220500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4460 (or 4448 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 11.

The square root of 2220500 is about 1490.1342221424. The cubic root of 2220500 is about 130.4618679662.

Adding to 2220500 its reverse (50222), we get a palindrome (2270722).

The spelling of 2220500 in words is "two million, two hundred twenty thousand, five hundred".