6604340426 has 12 divisors (see below), whose sum is σ = 9933982578. Its totient is φ = 3293038152.

The previous prime is 6604340399. The next prime is 6604340437. The reversal of 6604340426 is 6240434066.

It can be written as a sum of positive squares in only one way, i.e., 6225999025 + 378341401 = 78905^2 + 19451^2 .

It is a super-2 number, since 2×6604340426² = 87234624924995722952, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 257120 + ... + 281636.

Almost surely, 2^6604340426 is an apocalyptic number.

6604340426 is a deficient number, since it is larger than the sum of its proper divisors (3329642152).

6604340426 is an equidigital number, since it uses as much as digits as its factorization.

6604340426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25253 (or 24886 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 35.

The square root of 6604340426 is about 81267.0931312299. The cubic root of 6604340426 is about 1876.1885608783.

The spelling of 6604340426 in words is "six billion, six hundred four million, three hundred forty thousand, four hundred twenty-six".