2234516778 has 24 divisors (see below), whose sum is σ = 5213873028. Its totient is φ = 687543552.

The previous prime is 2234516773. The next prime is 2234516789. The reversal of 2234516778 is 8776154322.

It can be written as a sum of positive squares in 2 ways, for example, as 1945074609 + 289442169 = 44103^2 + 17013^2 .

It is not an unprimeable number, because it can be changed into a prime (2234516773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4774375 + ... + 4774842.

Almost surely, 2^2234516778 is an apocalyptic number.

2234516778 is an abundant number, since it is smaller than the sum of its proper divisors (2979356250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2234516778 is a wasteful number, since it uses less digits than its factorization.

2234516778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9549238 (or 9549235 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 2234516778 is about 47270.6756668445. The cubic root of 2234516778 is about 1307.3580337387.

The spelling of 2234516778 in words is "two billion, two hundred thirty-four million, five hundred sixteen thousand, seven hundred seventy-eight".