428023578426 has 16 divisors (see below), whose sum is σ = 856065327264. Its totient is φ = 142671497744.

The previous prime is 428023578407. The next prime is 428023578439. The reversal of 428023578426 is 624875320824.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 440700 + ... + 1024823.

It is an arithmetic number, because the mean of its divisors is an integer number (53504082954).

Almost surely, 2^428023578426 is an apocalyptic number.

428023578426 is an abundant number, since it is smaller than the sum of its proper divisors (428041748838).

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

428023578426 is a wasteful number, since it uses less digits than its factorization.

428023578426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1514205.

The product of its (nonzero) digits is 5160960, while the sum is 51.

The spelling of 428023578426 in words is "four hundred twenty-eight billion, twenty-three million, five hundred seventy-eight thousand, four hundred twenty-six".