626664446 has 16 divisors (see below), whose sum is σ = 945866544. Its totient is φ = 311382144.

The previous prime is 626664433. The next prime is 626664461. The reversal of 626664446 is 644466626.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 626664397 and 626664406.

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 in 7 ways as a sum of consecutive naturals, for example, 243800 + ... + 246356.

It is an arithmetic number, because the mean of its divisors is an integer number (59116659).

Almost surely, 2^626664446 is an apocalyptic number.

626664446 is a deficient number, since it is larger than the sum of its proper divisors (319202098).

626664446 is a wasteful number, since it uses less digits than its factorization.

626664446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3275.

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

The square root of 626664446 is about 25033.2667864184. The cubic root of 626664446 is about 855.7462772862.

The spelling of 626664446 in words is "six hundred twenty-six million, six hundred sixty-four thousand, four hundred forty-six".