2227645 has 8 divisors (see below), whose sum is σ = 3055104. Its totient is φ = 1527504.

The previous prime is 2227639. The next prime is 2227649. The reversal of 2227645 is 5467222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2227645 is a prime.

It is a Duffinian number.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31789 + ... + 31858.

It is an arithmetic number, because the mean of its divisors is an integer number (381888).

2^2227645 is an apocalyptic number.

It is an amenable number.

2227645 is a deficient number, since it is larger than the sum of its proper divisors (827459).

2227645 is an equidigital number, since it uses as much as digits as its factorization.

2227645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63659.

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

The square root of 2227645 is about 1492.5297316972. The cubic root of 2227645 is about 130.6016491001.

The spelling of 2227645 in words is "two million, two hundred twenty-seven thousand, six hundred forty-five".