2229745 has 24 divisors (see below), whose sum is σ = 3283200. Its totient is φ = 1445472.

The previous prime is 2229713. The next prime is 2229767. The reversal of 2229745 is 5479222.

It is not a de Polignac number, because 2229745 - 2⁵ = 2229713 is a prime.

It is a d-powerful number, because it can be written as 2¹⁸ + 2¹⁹ + 2²⁰ + 9 + 7 + 4⁶ + 5⁸ .

2229745 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4416 + ... + 4894.

It is an arithmetic number, because the mean of its divisors is an integer number (136800).

2^2229745 is an apocalyptic number.

It is an amenable number.

2229745 is a deficient number, since it is larger than the sum of its proper divisors (1053455).

2229745 is a wasteful number, since it uses less digits than its factorization.

2229745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517 (or 510 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The square root of 2229745 is about 1493.2330695508. The cubic root of 2229745 is about 130.6426755840.

The spelling of 2229745 in words is "two million, two hundred twenty-nine thousand, seven hundred forty-five".