422613421 has 16 divisors (see below), whose sum is σ = 468840960. Its totient is φ = 379146240.

The previous prime is 422613413. The next prime is 422613427. The reversal of 422613421 is 124316224.

It is a happy number.

It is not a de Polignac number, because 422613421 - 2³ = 422613413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422613427) 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, 29325 + ... + 41293.

It is an arithmetic number, because the mean of its divisors is an integer number (29302560).

Almost surely, 2^422613421 is an apocalyptic number.

It is an amenable number.

422613421 is a deficient number, since it is larger than the sum of its proper divisors (46227539).

422613421 is a wasteful number, since it uses less digits than its factorization.

422613421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12084.

The product of its digits is 2304, while the sum is 25.

The square root of 422613421 is about 20557.5635959128. The cubic root of 422613421 is about 750.4373277578.

Adding to 422613421 its reverse (124316224), we get a palindrome (546929645).

The spelling of 422613421 in words is "four hundred twenty-two million, six hundred thirteen thousand, four hundred twenty-one".