2072220 has 24 divisors (see below), whose sum is σ = 5802384. Its totient is φ = 552576.

The previous prime is 2072209. The next prime is 2072267. The reversal of 2072220 is 222702.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2072220.

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, 17209 + ... + 17328.

It is an arithmetic number, because the mean of its divisors is an integer number (241766).

2^2072220 is an apocalyptic number.

2072220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2072220 is an abundant number, since it is smaller than the sum of its proper divisors (3730164).

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

2072220 is a wasteful number, since it uses less digits than its factorization.

2072220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34549 (or 34547 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 15.

The square root of 2072220 is about 1439.5207535843. The cubic root of 2072220 is about 127.4907336595.

Adding to 2072220 its reverse (222702), we get a palindrome (2294922).

The spelling of 2072220 in words is "two million, seventy-two thousand, two hundred twenty".