2282978305 has 4 divisors (see below), whose sum is σ = 2739573972. Its totient is φ = 1826382640.

The previous prime is 2282978303. The next prime is 2282978309. The reversal of 2282978305 is 5038792822.

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 1527168241 + 755810064 = 39079^2 + 27492^2 .

It is not a de Polignac number, because 2282978305 - 2¹ = 2282978303 is a prime.

It is a super-2 number, since 2×2282978305² = 10423979882201346050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2282978303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228297826 + ... + 228297835.

It is an arithmetic number, because the mean of its divisors is an integer number (684893493).

Almost surely, 2^2282978305 is an apocalyptic number.

It is an amenable number.

2282978305 is a deficient number, since it is larger than the sum of its proper divisors (456595667).

2282978305 is an equidigital number, since it uses as much as digits as its factorization.

2282978305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456595666.

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 2282978305 is about 47780.5222344838. The cubic root of 2282978305 is about 1316.7417161373.

The spelling of 2282978305 in words is "two billion, two hundred eighty-two million, nine hundred seventy-eight thousand, three hundred five".