2245784 has 16 divisors (see below), whose sum is σ = 4228200. Its totient is φ = 1118272.

The previous prime is 2245783. The next prime is 2245787. The reversal of 2245784 is 4875422.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2¹⁶ + 2²¹ + 4³ + 5⁴ + 7⁵ + 8² + 4⁸ .

It is a self number, because there is not a number n which added to its sum of digits gives 2245784.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2245783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2372 + ... + 3180.

2^2245784 is an apocalyptic number.

It is an amenable number.

2245784 is a deficient number, since it is larger than the sum of its proper divisors (1982416).

2245784 is a wasteful number, since it uses less digits than its factorization.

2245784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162 (or 1158 counting only the distinct ones).

The product of its digits is 17920, while the sum is 32.

The square root of 2245784 is about 1498.5940077286. The cubic root of 2245784 is about 130.9551737544.

The spelling of 2245784 in words is "two million, two hundred forty-five thousand, seven hundred eighty-four".