426221606 has 8 divisors (see below), whose sum is σ = 642008160. Its totient is φ = 212218888.

The previous prime is 426221599. The next prime is 426221617. The reversal of 426221606 is 606122624.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 445361 + ... + 446316.

It is an arithmetic number, because the mean of its divisors is an integer number (80251020).

Almost surely, 2^426221606 is an apocalyptic number.

426221606 is a deficient number, since it is larger than the sum of its proper divisors (215786554).

426221606 is a wasteful number, since it uses less digits than its factorization.

426221606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891918.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 426221606 is about 20645.1351654573. The cubic root of 426221606 is about 752.5669707102.

The spelling of 426221606 in words is "four hundred twenty-six million, two hundred twenty-one thousand, six hundred six".