422320550 has 24 divisors (see below), whose sum is σ = 792478296. Its totient is φ = 167431040.

The previous prime is 422320537. The next prime is 422320621. The reversal of 422320550 is 55023224.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31724 + ... + 43023.

It is an arithmetic number, because the mean of its divisors is an integer number (33019929).

Almost surely, 2^422320550 is an apocalyptic number.

422320550 is a deficient number, since it is larger than the sum of its proper divisors (370157746).

422320550 is a wasteful number, since it uses less digits than its factorization.

422320550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74872 (or 74867 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 422320550 is about 20550.4391680567. The cubic root of 422320550 is about 750.2639367353.

Adding to 422320550 its reverse (55023224), we get a palindrome (477343774).

The spelling of 422320550 in words is "four hundred twenty-two million, three hundred twenty thousand, five hundred fifty".