422640603 has 96 divisors (see below), whose sum is σ = 798999552. Its totient is φ = 208915200.

The previous prime is 422640601. The next prime is 422640613. The reversal of 422640603 is 306046224.

It is not a de Polignac number, because 422640603 - 2¹ = 422640601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (422640601) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1358818 + ... + 1359128.

It is an arithmetic number, because the mean of its divisors is an integer number (8322912).

Almost surely, 2^422640603 is an apocalyptic number.

422640603 is a deficient number, since it is larger than the sum of its proper divisors (376358949).

422640603 is a wasteful number, since it uses less digits than its factorization.

422640603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425 (or 422 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 422640603 is about 20558.2247044826. The cubic root of 422640603 is about 750.4534164961.

Adding to 422640603 its reverse (306046224), we get a palindrome (728686827).

The spelling of 422640603 in words is "four hundred twenty-two million, six hundred forty thousand, six hundred three".