422278142 has 24 divisors (see below), whose sum is σ = 749797608. Its totient is φ = 177178320.

The previous prime is 422278121. The next prime is 422278169. The reversal of 422278142 is 241872224.

It is a junction number, because it is equal to n+sod(n) for n = 422278099 and 422278108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63968 + ... + 70259.

It is an arithmetic number, because the mean of its divisors is an integer number (31241567).

Almost surely, 2^422278142 is an apocalyptic number.

422278142 is a deficient number, since it is larger than the sum of its proper divisors (327519466).

422278142 is a wasteful number, since it uses less digits than its factorization.

422278142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134264 (or 134253 counting only the distinct ones).

The product of its digits is 14336, while the sum is 32.

The square root of 422278142 is about 20549.4073393857. The cubic root of 422278142 is about 750.2388229064.

The spelling of 422278142 in words is "four hundred twenty-two million, two hundred seventy-eight thousand, one hundred forty-two".