678412422 has 20 divisors (see below), whose sum is σ = 1520146716. Its totient is φ = 226137420.

The previous prime is 678412417. The next prime is 678412477. The reversal of 678412422 is 224214876.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 2093704 + ... + 2094027.

Almost surely, 2^678412422 is an apocalyptic number.

678412422 is an abundant number, since it is smaller than the sum of its proper divisors (841734294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

678412422 is a wasteful number, since it uses less digits than its factorization.

678412422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4187745 (or 4187736 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 678412422 is about 26046.3514143536. The cubic root of 678412422 is about 878.6810570432.

The spelling of 678412422 in words is "six hundred seventy-eight million, four hundred twelve thousand, four hundred twenty-two".