422222644 has 24 divisors (see below), whose sum is σ = 752633280. Its totient is φ = 207196416.

The previous prime is 422222627. The next prime is 422222653. The reversal of 422222644 is 446222224.

It is a super-2 number, since 2×422222644² = 356543922212701472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208324 + ... + 210340.

It is an arithmetic number, because the mean of its divisors is an integer number (31359720).

Almost surely, 2^422222644 is an apocalyptic number.

It is an amenable number.

422222644 is a deficient number, since it is larger than the sum of its proper divisors (330410636).

422222644 is a wasteful number, since it uses less digits than its factorization.

422222644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2967 (or 2965 counting only the distinct ones).

The product of its digits is 12288, while the sum is 28.

The square root of 422222644 is about 20548.0569397693. The cubic root of 422222644 is about 750.2059546976.

Adding to 422222644 its reverse (446222224), we get a palindrome (868444868).

The spelling of 422222644 in words is "four hundred twenty-two million, two hundred twenty-two thousand, six hundred forty-four".