2278745306 has 4 divisors (see below), whose sum is σ = 3418117962. Its totient is φ = 1139372652.

The previous prime is 2278745299. The next prime is 2278745333. The reversal of 2278745306 is 6035478722.

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

It can be written as a sum of positive squares in only one way, i.e., 2228689681 + 50055625 = 47209^2 + 7075^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 569686325 + ... + 569686328.

Almost surely, 2^2278745306 is an apocalyptic number.

2278745306 is a deficient number, since it is larger than the sum of its proper divisors (1139372656).

2278745306 is a wasteful number, since it uses less digits than its factorization.

2278745306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139372655.

The product of its (nonzero) digits is 564480, while the sum is 44.

The square root of 2278745306 is about 47736.2054000944. The cubic root of 2278745306 is about 1315.9273975800.

The spelling of 2278745306 in words is "two billion, two hundred seventy-eight million, seven hundred forty-five thousand, three hundred six".