2269777249 has 4 divisors (see below), whose sum is σ = 2348045460. Its totient is φ = 2191509040.

The previous prime is 2269777199. The next prime is 2269777303. The reversal of 2269777249 is 9427779622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9427779622 = 2 ⋅4713889811.

It can be written as a sum of positive squares in 2 ways, for example, as 872139024 + 1397638225 = 29532^2 + 37385^2 .

It is a cyclic number.

It is not a de Polignac number, because 2269777249 - 2¹¹ = 2269775201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2269777249.

It is not an unprimeable number, because it can be changed into a prime (2269772249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39134062 + ... + 39134119.

It is an arithmetic number, because the mean of its divisors is an integer number (587011365).

Almost surely, 2^2269777249 is an apocalyptic number.

2269777249 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2269777249 is a deficient number, since it is larger than the sum of its proper divisors (78268211).

2269777249 is an equidigital number, since it uses as much as digits as its factorization.

2269777249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78268210.

The product of its digits is 5334336, while the sum is 55.

The square root of 2269777249 is about 47642.1793057371. The cubic root of 2269777249 is about 1314.1988400174.

The spelling of 2269777249 in words is "two billion, two hundred sixty-nine million, seven hundred seventy-seven thousand, two hundred forty-nine".