422789878 has 8 divisors (see below), whose sum is σ = 724782672. Its totient is φ = 181195656.

The previous prime is 422789867. The next prime is 422789879. The reversal of 422789878 is 878987224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422789879) 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, 15099625 + ... + 15099652.

It is an arithmetic number, because the mean of its divisors is an integer number (90597834).

Almost surely, 2^422789878 is an apocalyptic number.

422789878 is a deficient number, since it is larger than the sum of its proper divisors (301992794).

422789878 is a wasteful number, since it uses less digits than its factorization.

422789878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30199286.

The product of its digits is 3612672, while the sum is 55.

The square root of 422789878 is about 20561.8549260518. The cubic root of 422789878 is about 750.5417584953.

The spelling of 422789878 in words is "four hundred twenty-two million, seven hundred eighty-nine thousand, eight hundred seventy-eight".