422640213 has 16 divisors (see below), whose sum is σ = 597104640. Its totient is φ = 264992256.

The previous prime is 422640181. The next prime is 422640241. The reversal of 422640213 is 312046224.

It is not a de Polignac number, because 422640213 - 2⁵ = 422640181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422640293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104556 + ... + 108522.

It is an arithmetic number, because the mean of its divisors is an integer number (37319040).

Almost surely, 2^422640213 is an apocalyptic number.

It is an amenable number.

422640213 is a deficient number, since it is larger than the sum of its proper divisors (174464427).

422640213 is a wasteful number, since it uses less digits than its factorization.

422640213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6076.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 422640213 is about 20558.2152192256. The cubic root of 422640213 is about 750.4531856641.

Adding to 422640213 its reverse (312046224), we get a palindrome (734686437).

The spelling of 422640213 in words is "four hundred twenty-two million, six hundred forty thousand, two hundred thirteen".