2272564 has 12 divisors (see below), whose sum is σ = 4545184. Its totient is φ = 973944.

The previous prime is 2272559. The next prime is 2272597. The reversal of 2272564 is 4652722.

2272564 is an admirable number.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 81163 = 2272564 / (2 + 2 + 7 + 2 + 5 + 6 + 4).

It is a d-powerful number, because it can be written as 2⁵ + 2¹⁵ + 7⁵ + 2²¹ + 5⁷ + 6⁶ + 4⁵ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40554 + ... + 40609.

2^2272564 is an apocalyptic number.

It is an amenable number.

2272564 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2272564 is a wasteful number, since it uses less digits than its factorization.

2272564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81174 (or 81172 counting only the distinct ones).

The product of its digits is 6720, while the sum is 28.

The square root of 2272564 is about 1507.5025704787. The cubic root of 2272564 is about 131.4736462101.

The spelling of 2272564 in words is "two million, two hundred seventy-two thousand, five hundred sixty-four".