2008420664 has 32 divisors (see below), whose sum is σ = 4010400720. Its totient is φ = 939664896.

The previous prime is 2008420619. The next prime is 2008420679. The reversal of 2008420664 is 4660248002.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2008420664.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19154 + ... + 66209.

Almost surely, 2^2008420664 is an apocalyptic number.

It is an amenable number.

2008420664 is a deficient number, since it is larger than the sum of its proper divisors (2001980056).

2008420664 is a wasteful number, since it uses less digits than its factorization.

2008420664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85559 (or 85555 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 2008420664 is about 44815.4065473025. The cubic root of 2008420664 is about 1261.6868027114.

Adding to 2008420664 its reverse (4660248002), we get a palindrome (6668668666).

The spelling of 2008420664 in words is "two billion, eight million, four hundred twenty thousand, six hundred sixty-four".