422620745 has 16 divisors (see below), whose sum is σ = 530271360. Its totient is φ = 323350192.

The previous prime is 422620739. The next prime is 422620747. The reversal of 422620745 is 547026224.

It is not a de Polignac number, because 422620745 - 2⁴ = 422620729 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (422620747) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 57362 + ... + 64308.

It is an arithmetic number, because the mean of its divisors is an integer number (33141960).

Almost surely, 2^422620745 is an apocalyptic number.

It is an amenable number.

422620745 is a deficient number, since it is larger than the sum of its proper divisors (107650615).

422620745 is an frugal number, since it uses more digits than its factorization.

422620745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7021 (or 6975 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 422620745 is about 20557.7417290908. The cubic root of 422620745 is about 750.4416628238.

Adding to 422620745 its reverse (547026224), we get a palindrome (969646969).

The spelling of 422620745 in words is "four hundred twenty-two million, six hundred twenty thousand, seven hundred forty-five".