4428668194 has 8 divisors (see below), whose sum is σ = 6643402668. Its totient is φ = 2214200640.

The previous prime is 4428668183. The next prime is 4428668203. The reversal of 4428668194 is 4918668244.

It can be written as a sum of positive squares in 2 ways, for example, as 3042074025 + 1386594169 = 55155^2 + 37237^2 .

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

It is a super-2 number, since 2×4428668194² = 39226203945094443272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18187 + ... + 95854.

Almost surely, 2^4428668194 is an apocalyptic number.

4428668194 is a deficient number, since it is larger than the sum of its proper divisors (2214734474).

4428668194 is a wasteful number, since it uses less digits than its factorization.

4428668194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133460.

The product of its digits is 2654208, while the sum is 52.

The square root of 4428668194 is about 66548.2396010593. The cubic root of 4428668194 is about 1642.1936975613.

The spelling of 4428668194 in words is "four billion, four hundred twenty-eight million, six hundred sixty-eight thousand, one hundred ninety-four".