422143015 has 16 divisors (see below), whose sum is σ = 580334400. Its totient is φ = 288771840.

The previous prime is 422142991. The next prime is 422143019. The reversal of 422143015 is 510341224.

It is a de Polignac number, because none of the positive numbers 2^k-422143015 is a prime.

It is a super-2 number, since 2×422143015² = 356409450226580450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422143019) 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, 411 + ... + 29059.

It is an arithmetic number, because the mean of its divisors is an integer number (36270900).

Almost surely, 2^422143015 is an apocalyptic number.

422143015 is a deficient number, since it is larger than the sum of its proper divisors (158191385).

422143015 is a wasteful number, since it uses less digits than its factorization.

422143015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29082.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 422143015 is about 20546.1192199403. The cubic root of 422143015 is about 750.1587900823.

Adding to 422143015 its reverse (510341224), we get a palindrome (932484239).

The spelling of 422143015 in words is "four hundred twenty-two million, one hundred forty-three thousand, fifteen".