422422644 has 24 divisors (see below), whose sum is σ = 1126460608. Its totient is φ = 120692160.

The previous prime is 422422601. The next prime is 422422727. The reversal of 422422644 is 446224224.

It is a nude number because it is divisible by every one of its digits.

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, 2514337 + ... + 2514504.

Almost surely, 2^422422644 is an apocalyptic number.

It is an amenable number.

422422644 is an abundant number, since it is smaller than the sum of its proper divisors (704037964).

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

422422644 is a wasteful number, since it uses less digits than its factorization.

422422644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5028855 (or 5028853 counting only the distinct ones).

The product of its digits is 24576, while the sum is 30.

The square root of 422422644 is about 20552.9230037968. The cubic root of 422422644 is about 750.3243894529.

Adding to 422422644 its reverse (446224224), we get a palindrome (868646868).

The spelling of 422422644 in words is "four hundred twenty-two million, four hundred twenty-two thousand, six hundred forty-four".