422441644 has 12 divisors (see below), whose sum is σ = 771415344. Its totient is φ = 202037264.

The previous prime is 422441639. The next prime is 422441651. The reversal of 422441644 is 446144224.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2295787 + ... + 2295970.

It is an arithmetic number, because the mean of its divisors is an integer number (64284612).

Almost surely, 2^422441644 is an apocalyptic number.

It is an amenable number.

422441644 is a deficient number, since it is larger than the sum of its proper divisors (348973700).

422441644 is a wasteful number, since it uses less digits than its factorization.

422441644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4591784 (or 4591782 counting only the distinct ones).

The product of its digits is 24576, while the sum is 31.

The square root of 422441644 is about 20553.3852199583. The cubic root of 422441644 is about 750.3356388101.

Adding to 422441644 its reverse (446144224), we get a palindrome (868585868).

The spelling of 422441644 in words is "four hundred twenty-two million, four hundred forty-one thousand, six hundred forty-four".