4428664690 has 8 divisors (see below), whose sum is σ = 7971596460. Its totient is φ = 1771465872.

The previous prime is 4428664687. The next prime is 4428664703. The reversal of 4428664690 is 964668244.

It can be written as a sum of positive squares in 2 ways, for example, as 4112785161 + 315879529 = 64131^2 + 17773^2 .

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

It is a super-2 number, since 2×4428664690² = 39226141872905592200, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 221433225 + ... + 221433244.

Almost surely, 2^4428664690 is an apocalyptic number.

4428664690 is a deficient number, since it is larger than the sum of its proper divisors (3542931770).

4428664690 is a wasteful number, since it uses less digits than its factorization.

4428664690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442866476.

The product of its (nonzero) digits is 1990656, while the sum is 49.

The square root of 4428664690 is about 66548.2132742871. The cubic root of 4428664690 is about 1642.1932644554.

The spelling of 4428664690 in words is "four billion, four hundred twenty-eight million, six hundred sixty-four thousand, six hundred ninety".