2272290 has 16 divisors (see below), whose sum is σ = 5453568. Its totient is φ = 605936.

The previous prime is 2272273. The next prime is 2272297. The reversal of 2272290 is 922722.

It is a self number, because there is not a number n which added to its sum of digits gives 2272290.

It is not an unprimeable number, because it can be changed into a prime (2272297) 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, 37842 + ... + 37901.

It is an arithmetic number, because the mean of its divisors is an integer number (340848).

2^2272290 is an apocalyptic number.

2272290 is an abundant number, since it is smaller than the sum of its proper divisors (3181278).

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

2272290 is a wasteful number, since it uses less digits than its factorization.

2272290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75753.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 2272290 is about 1507.4116889556. The cubic root of 2272290 is about 131.4683621305.

The spelling of 2272290 in words is "two million, two hundred seventy-two thousand, two hundred ninety".