4428921600 has 324 divisors, whose sum is σ = 16769536056. Its totient is φ = 1111326720.

The previous prime is 4428921599. The next prime is 4428921613. The reversal of 4428921600 is 61298244.

4428921600 is a `hidden beast` number, since 4 + 4 + 28 + 9 + 21 + 600 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 976939 + ... + 981461.

Almost surely, 2^4428921600 is an apocalyptic number.

4428921600 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4428921600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8384768028).

4428921600 is an abundant number, since it is smaller than the sum of its proper divisors (12340614456).

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

4428921600 is a wasteful number, since it uses less digits than its factorization.

4428921600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4572 (or 4550 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 4428921600 is about 66550.1435009723. The cubic root of 4428921600 is about 1642.2250187758.

The spelling of 4428921600 in words is "four billion, four hundred twenty-eight million, nine hundred twenty-one thousand, six hundred".