2278338722 has 16 divisors (see below), whose sum is σ = 3743798400. Its totient is φ = 1031273040.

The previous prime is 2278338721. The next prime is 2278338737.

2278338722 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (2278338721) 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, 211397 + ... + 221912.

It is an arithmetic number, because the mean of its divisors is an integer number (233987400).

Almost surely, 2^2278338722 is an apocalyptic number.

2278338722 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2278338722 is a deficient number, since it is larger than the sum of its proper divisors (1465459678).

2278338722 is a wasteful number, since it uses less digits than its factorization.

2278338722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433561.

The product of its digits is 451584, while the sum is 44.

The square root of 2278338722 is about 47731.9465557398. The cubic root of 2278338722 is about 1315.8491283606.

The spelling of 2278338722 in words is "two billion, two hundred seventy-eight million, three hundred thirty-eight thousand, seven hundred twenty-two".