2269749 has 16 divisors (see below), whose sum is σ = 3134720. Its totient is φ = 1460160.

The previous prime is 2269739. The next prime is 2269763. The reversal of 2269749 is 9479622.

It is not a de Polignac number, because 2269749 - 2⁴ = 2269733 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

2269749 is an undulating number in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2269739) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14379 + ... + 14535.

It is an arithmetic number, because the mean of its divisors is an integer number (195920).

2^2269749 is an apocalyptic number.

It is an amenable number.

2269749 is a deficient number, since it is larger than the sum of its proper divisors (864971).

2269749 is a wasteful number, since it uses less digits than its factorization.

2269749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300.

The product of its digits is 54432, while the sum is 39.

The square root of 2269749 is about 1506.5686177536. The cubic root of 2269749 is about 131.4193387947.

The spelling of 2269749 in words is "two million, two hundred sixty-nine thousand, seven hundred forty-nine".