2247644 has 12 divisors (see below), whose sum is σ = 4495344. Its totient is φ = 963264.

The previous prime is 2247611. The next prime is 2247659. The reversal of 2247644 is 4467422.

2247644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

2247644 is an admirable number.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40109 + ... + 40164.

It is an arithmetic number, because the mean of its divisors is an integer number (374612).

2^2247644 is an apocalyptic number.

It is an amenable number.

2247644 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.

2247644 is a wasteful number, since it uses less digits than its factorization.

2247644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80284 (or 80282 counting only the distinct ones).

The product of its digits is 10752, while the sum is 29.

The square root of 2247644 is about 1499.2144609761. The cubic root of 2247644 is about 130.9913169468.

The spelling of 2247644 in words is "two million, two hundred forty-seven thousand, six hundred forty-four".