426466646 has 4 divisors (see below), whose sum is σ = 639699972. Its totient is φ = 213233322.

The previous prime is 426466639. The next prime is 426466681. The reversal of 426466646 is 646664624.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 426466597 and 426466606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106616660 + ... + 106616663.

It is an arithmetic number, because the mean of its divisors is an integer number (159924993).

Almost surely, 2^426466646 is an apocalyptic number.

426466646 is a deficient number, since it is larger than the sum of its proper divisors (213233326).

426466646 is a wasteful number, since it uses less digits than its factorization.

426466646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213233325.

The product of its digits is 995328, while the sum is 44.

The square root of 426466646 is about 20651.0688827479. The cubic root of 426466646 is about 752.7111630580.

The spelling of 426466646 in words is "four hundred twenty-six million, four hundred sixty-six thousand, six hundred forty-six".