2272390 has 16 divisors (see below), whose sum is σ = 4331232. Its totient is φ = 855424.

The previous prime is 2272379. The next prime is 2272397. The reversal of 2272390 is 932722.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2272397) 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, 6514 + ... + 6853.

It is an arithmetic number, because the mean of its divisors is an integer number (270702).

2^2272390 is an apocalyptic number.

2272390 is a deficient number, since it is larger than the sum of its proper divisors (2058842).

2272390 is a wasteful number, since it uses less digits than its factorization.

2272390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13391.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 2272390 is about 1507.4448580296. Note that the first 3 decimals coincide. The cubic root of 2272390 is about 131.4702906759.

It can be divided in two parts, 2272 and 390, that added together give a palindrome (2662).

The spelling of 2272390 in words is "two million, two hundred seventy-two thousand, three hundred ninety".