2272660 has 24 divisors (see below), whose sum is σ = 5140296. Its totient is φ = 839040.

The previous prime is 2272657. The next prime is 2272667. The reversal of 2272660 is 662722.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4624 + 2268036 = 68^2 + 1506^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2272667) 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, 4111 + ... + 4630.

It is an arithmetic number, because the mean of its divisors is an integer number (214179).

2^2272660 is an apocalyptic number.

2272660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2272660 is an abundant number, since it is smaller than the sum of its proper divisors (2867636).

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

2272660 is a wasteful number, since it uses less digits than its factorization.

2272660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8763 (or 8761 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 2272660 is about 1507.5344108842. The cubic root of 2272660 is about 131.4754974660.

The spelling of 2272660 in words is "two million, two hundred seventy-two thousand, six hundred sixty".