426444123406 has 24 divisors (see below), whose sum is σ = 746349578136. Its totient is φ = 182209602960.

The previous prime is 426444123403. The next prime is 426444123407. The reversal of 426444123406 is 604321444624.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426444123403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6540781 + ... + 6605656.

It is an arithmetic number, because the mean of its divisors is an integer number (31097899089).

Almost surely, 2^426444123406 is an apocalyptic number.

426444123406 is a deficient number, since it is larger than the sum of its proper divisors (319905454730).

426444123406 is a wasteful number, since it uses less digits than its factorization.

426444123406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13146784 (or 13146777 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 40.

The spelling of 426444123406 in words is "four hundred twenty-six billion, four hundred forty-four million, one hundred twenty-three thousand, four hundred six".