2778045222 has 32 divisors (see below), whose sum is σ = 5813913600. Its totient is φ = 883863360.

The previous prime is 2778045181. The next prime is 2778045287. The reversal of 2778045222 is 2225408772.

It is a happy number.

2778045222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88722 + ... + 115877.

It is an arithmetic number, because the mean of its divisors is an integer number (181684800).

Almost surely, 2^2778045222 is an apocalyptic number.

2778045222 is an abundant number, since it is smaller than the sum of its proper divisors (3035868378).

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

2778045222 is a wasteful number, since it uses less digits than its factorization.

2778045222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204708.

The product of its (nonzero) digits is 125440, while the sum is 39.

The square root of 2778045222 is about 52707.1648070734. The cubic root of 2778045222 is about 1405.7662216271.

The spelling of 2778045222 in words is "two billion, seven hundred seventy-eight million, forty-five thousand, two hundred twenty-two".