2242745 has 8 divisors (see below), whose sum is σ = 2709384. Its totient is φ = 1782144.

The previous prime is 2242739. The next prime is 2242763. The reversal of 2242745 is 5472422.

It can be written as a sum of positive squares in 4 ways, for example, as 200704 + 2042041 = 448^2 + 1429^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2242745 - 2⁴ = 2242729 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 644 + ... + 2213.

It is an arithmetic number, because the mean of its divisors is an integer number (338673).

2^2242745 is an apocalyptic number.

It is an amenable number.

2242745 is a deficient number, since it is larger than the sum of its proper divisors (466639).

2242745 is a wasteful number, since it uses less digits than its factorization.

2242745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3019.

The product of its digits is 4480, while the sum is 26.

The square root of 2242745 is about 1497.5797140720. The cubic root of 2242745 is about 130.8960774773.

The spelling of 2242745 in words is "two million, two hundred forty-two thousand, seven hundred forty-five".