2227640 has 16 divisors (see below), whose sum is σ = 5012280. Its totient is φ = 891040.

The previous prime is 2227639. The next prime is 2227649. The reversal of 2227640 is 467222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2227649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27806 + ... + 27885.

2^2227640 is an apocalyptic number.

2227640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2227640 is an abundant number, since it is smaller than the sum of its proper divisors (2784640).

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

2227640 is a wasteful number, since it uses less digits than its factorization.

2227640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55702 (or 55698 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 2227640 is about 1492.5280566877. The cubic root of 2227640 is about 130.6015513872.

The spelling of 2227640 in words is "two million, two hundred twenty-seven thousand, six hundred forty".