662644406 has 8 divisors (see below), whose sum is σ = 1026030144. Its totient is φ = 320634360.

The previous prime is 662644397. The next prime is 662644417. The reversal of 662644406 is 604446266.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 662644406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5343845 + ... + 5343968.

It is an arithmetic number, because the mean of its divisors is an integer number (128253768).

Almost surely, 2^662644406 is an apocalyptic number.

662644406 is a deficient number, since it is larger than the sum of its proper divisors (363385738).

662644406 is a wasteful number, since it uses less digits than its factorization.

662644406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10687846.

The product of its (nonzero) digits is 165888, while the sum is 38.

The square root of 662644406 is about 25741.8803897462. The cubic root of 662644406 is about 871.8200353509.

The spelling of 662644406 in words is "six hundred sixty-two million, six hundred forty-four thousand, four hundred six".