3222278642 has 54 divisors (see below), whose sum is σ = 5507378247. Its totient is φ = 1412892800.

The previous prime is 3222278641. The next prime is 3222278699. The reversal of 3222278642 is 2468722223.

It can be written as a sum of positive squares in 5 ways, for example, as 39175081 + 3183103561 = 6259^2 + 56419^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=40139.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3222278596 and 3222278605.

It is not an unprimeable number, because it can be changed into a prime (3222278641) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 36205334 + ... + 36205422.

Almost surely, 2^3222278642 is an apocalyptic number.

3222278642 is a deficient number, since it is larger than the sum of its proper divisors (2285099605).

3222278642 is an equidigital number, since it uses as much as digits as its factorization.

3222278642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284 (or 143 counting only the distinct ones).

The product of its digits is 129024, while the sum is 38.

The square root of 3222278642 is about 56765.1181800937. The cubic root of 3222278642 is about 1477.0244944932.

The spelling of 3222278642 in words is "three billion, two hundred twenty-two million, two hundred seventy-eight thousand, six hundred forty-two".