2302749 has 10 divisors (see below), whose sum is σ = 3440030. Its totient is φ = 1535112.

The previous prime is 2302717. The next prime is 2302753. The reversal of 2302749 is 9472032.

It can be written as a sum of positive squares in only one way, i.e., 1822500 + 480249 = 1350^2 + 693^2 .

It is not a de Polignac number, because 2302749 - 2⁵ = 2302717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a d-powerful number, because it can be written as 2¹⁷ + 3³ + 0 + 2²¹ + 7⁴ + 4⁸ + 9⁴ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2302709) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 14134 + ... + 14295.

It is an arithmetic number, because the mean of its divisors is an integer number (344003).

2^2302749 is an apocalyptic number.

It is an amenable number.

2302749 is a deficient number, since it is larger than the sum of its proper divisors (1137281).

2302749 is an equidigital number, since it uses as much as digits as its factorization.

2302749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28441 (or 28432 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 2302749 is about 1517.4811366208. The cubic root of 2302749 is about 132.0531810505.

The spelling of 2302749 in words is "two million, three hundred two thousand, seven hundred forty-nine".