2236660 has 12 divisors (see below), whose sum is σ = 4697028. Its totient is φ = 894656.

The previous prime is 2236657. The next prime is 2236667. The reversal of 2236660 is 666322.

It can be written as a sum of positive squares in 2 ways, for example, as 708964 + 1527696 = 842^2 + 1236^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2236667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55897 + ... + 55936.

It is an arithmetic number, because the mean of its divisors is an integer number (391419).

2^2236660 is an apocalyptic number.

2236660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2236660 is an abundant number, since it is smaller than the sum of its proper divisors (2460368).

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

2236660 is a wasteful number, since it uses less digits than its factorization.

2236660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111842 (or 111840 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 2236660 is about 1495.5467227740. The cubic root of 2236660 is about 130.7775881448. Note that the first 3 decimals are identical.

The spelling of 2236660 in words is "two million, two hundred thirty-six thousand, six hundred sixty".