2274778369 has 4 divisors (see below), whose sum is σ = 2281954644. Its totient is φ = 2267602096.

The previous prime is 2274778351. The next prime is 2274778379. The reversal of 2274778369 is 9638774722.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 383572225 + 1891206144 = 19585^2 + 43488^2 .

It is a cyclic number.

It is not a de Polignac number, because 2274778369 - 2²¹ = 2272681217 is a prime.

It is a super-2 number, since 2×2274778369² = 10349233256140600322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2274778349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3587662 + ... + 3588295.

It is an arithmetic number, because the mean of its divisors is an integer number (570488661).

Almost surely, 2^2274778369 is an apocalyptic number.

It is an amenable number.

2274778369 is a deficient number, since it is larger than the sum of its proper divisors (7176275).

2274778369 is an equidigital number, since it uses as much as digits as its factorization.

2274778369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7176274.

The product of its digits is 7112448, while the sum is 55.

The square root of 2274778369 is about 47694.6366900934. The cubic root of 2274778369 is about 1315.1633465348.

It can be divided in two parts, 227 and 4778369, that added together give a square (4778596 = 2186²).

The spelling of 2274778369 in words is "two billion, two hundred seventy-four million, seven hundred seventy-eight thousand, three hundred sixty-nine".