2205092778 has 32 divisors (see below), whose sum is σ = 5214015360. Its totient is φ = 608301120.

The previous prime is 2205092767. The next prime is 2205092801. The reversal of 2205092778 is 8772905022.

It is a happy number.

2205092778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon 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, 903993 + ... + 906428.

It is an arithmetic number, because the mean of its divisors is an integer number (162937980).

Almost surely, 2^2205092778 is an apocalyptic number.

2205092778 is an abundant number, since it is smaller than the sum of its proper divisors (3008922582).

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

2205092778 is a wasteful number, since it uses less digits than its factorization.

2205092778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810462.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 2205092778 is about 46958.4154119365. The cubic root of 2205092778 is about 1301.5942527701.

The spelling of 2205092778 in words is "two billion, two hundred five million, ninety-two thousand, seven hundred seventy-eight".