2305749 has 8 divisors (see below), whose sum is σ = 3173632. Its totient is φ = 1487520.

The previous prime is 2305747. The next prime is 2305753. The reversal of 2305749 is 9475032.

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

It is not a de Polignac number, because 2305749 - 2¹ = 2305747 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2305747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12304 + ... + 12489.

It is an arithmetic number, because the mean of its divisors is an integer number (396704).

2^2305749 is an apocalyptic number.

It is an amenable number.

2305749 is a deficient number, since it is larger than the sum of its proper divisors (867883).

2305749 is a wasteful number, since it uses less digits than its factorization.

2305749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24827.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 2305749 is about 1518.4692950468. The cubic root of 2305749 is about 132.1105020510.

The spelling of 2305749 in words is "two million, three hundred five thousand, seven hundred forty-nine".