2285745 has 32 divisors (see below), whose sum is σ = 4561920. Its totient is φ = 949440.

The previous prime is 2285743. The next prime is 2285747. The reversal of 2285745 is 5475822.

It is an interprime number because it is at equal distance from previous prime (2285743) and next prime (2285747).

It is not a de Polignac number, because 2285745 - 2¹ = 2285743 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

2285745 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2285741) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166 + ... + 2144.

It is an arithmetic number, because the mean of its divisors is an integer number (142560).

2^2285745 is an apocalyptic number.

It is an amenable number.

2285745 is a deficient number, since it is larger than the sum of its proper divisors (2276175).

2285745 is a wasteful number, since it uses less digits than its factorization.

2285745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005.

The product of its digits is 22400, while the sum is 33.

The square root of 2285745 is about 1511.8680497980. The cubic root of 2285745 is about 131.7273412251.

The spelling of 2285745 in words is "two million, two hundred eighty-five thousand, seven hundred forty-five".