2272590 has 64 divisors (see below), whose sum is σ = 6393600. Its totient is φ = 572832.

The previous prime is 2272559. The next prime is 2272597. The reversal of 2272590 is 952722.

It is a happy number.

2272590 is a `hidden beast` number, since 2 + 2 + 72 + 590 = 666.

2272590 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2272597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4909 + ... + 5351.

It is an arithmetic number, because the mean of its divisors is an integer number (99900).

2^2272590 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2272590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3196800).

2272590 is an abundant number, since it is smaller than the sum of its proper divisors (4121010).

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

2272590 is a wasteful number, since it uses less digits than its factorization.

2272590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478 (or 472 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 2272590 is about 1507.5111939883. The cubic root of 2272590 is about 131.4741475970.

The spelling of 2272590 in words is "two million, two hundred seventy-two thousand, five hundred ninety".