2222345778 has 16 divisors (see below), whose sum is σ = 4517556096. Its totient is φ = 728637840.

The previous prime is 2222345759. The next prime is 2222345779. The reversal of 2222345778 is 8775432222.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (2222345779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3035626 + ... + 3036357.

It is an arithmetic number, because the mean of its divisors is an integer number (282347256).

Almost surely, 2^2222345778 is an apocalyptic number.

2222345778 is an abundant number, since it is smaller than the sum of its proper divisors (2295210318).

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

2222345778 is a wasteful number, since it uses less digits than its factorization.

2222345778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6072049.

The product of its digits is 376320, while the sum is 42.

The square root of 2222345778 is about 47141.7625678124. The cubic root of 2222345778 is about 1304.9800651672.

The spelling of 2222345778 in words is "two billion, two hundred twenty-two million, three hundred forty-five thousand, seven hundred seventy-eight".