423678426 has 16 divisors (see below), whose sum is σ = 874691328. Its totient is φ = 136670400.

The previous prime is 423678421. The next prime is 423678467. The reversal of 423678426 is 624876324.

It is not an unprimeable number, because it can be changed into a prime (423678421) 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 7 ways as a sum of consecutive naturals, for example, 1138735 + ... + 1139106.

It is an arithmetic number, because the mean of its divisors is an integer number (54668208).

Almost surely, 2^423678426 is an apocalyptic number.

423678426 is an abundant number, since it is smaller than the sum of its proper divisors (451012902).

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

423678426 is a wasteful number, since it uses less digits than its factorization.

423678426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2277877.

The product of its digits is 387072, while the sum is 42.

The square root of 423678426 is about 20583.4502938647. The cubic root of 423678426 is about 751.0671776777.

The spelling of 423678426 in words is "four hundred twenty-three million, six hundred seventy-eight thousand, four hundred twenty-six".