4428491672 has 64 divisors (see below), whose sum is σ = 9304999200. Its totient is φ = 1958400000.

The previous prime is 4428491663. The next prime is 4428491707. The reversal of 4428491672 is 2761948244.

It is a super-2 number, since 2×4428491672² = 39223076977946711168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1474172 + ... + 1477172.

Almost surely, 2^4428491672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4428491672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4652499600).

4428491672 is an abundant number, since it is smaller than the sum of its proper divisors (4876507528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4428491672 is a wasteful number, since it uses less digits than its factorization.

4428491672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3468 (or 3464 counting only the distinct ones).

The product of its digits is 774144, while the sum is 47.

The square root of 4428491672 is about 66546.9133168474. The cubic root of 4428491672 is about 1642.1718785739.

The spelling of 4428491672 in words is "four billion, four hundred twenty-eight million, four hundred ninety-one thousand, six hundred seventy-two".