422415431 has 4 divisors (see below), whose sum is σ = 426597864. Its totient is φ = 418233000.

The previous prime is 422415419. The next prime is 422415443. The reversal of 422415431 is 134514224.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (422415419) and next prime (422415443).

It is a cyclic number.

It is not a de Polignac number, because 422415431 - 2¹⁰ = 422414407 is a prime.

It is a super-2 number, since 2×422415431² = 356869592693831522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 422415431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422415451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2091065 + ... + 2091266.

It is an arithmetic number, because the mean of its divisors is an integer number (106649466).

Almost surely, 2^422415431 is an apocalyptic number.

422415431 is a deficient number, since it is larger than the sum of its proper divisors (4182433).

422415431 is a wasteful number, since it uses less digits than its factorization.

422415431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4182432.

The product of its digits is 3840, while the sum is 26.

The square root of 422415431 is about 20552.7475292234. The cubic root of 422415431 is about 750.3201187533.

Adding to 422415431 its reverse (134514224), we get a palindrome (556929655).

The spelling of 422415431 in words is "four hundred twenty-two million, four hundred fifteen thousand, four hundred thirty-one".