4423913280 has 448 divisors, whose sum is σ = 16386048000. Its totient is φ = 1122232320.

The previous prime is 4423913267. The next prime is 4423913303. The reversal of 4423913280 is 823193244.

4423913280 is a `hidden beast` number, since 442 + 3 + 9 + 132 + 80 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22230621 + ... + 22230819.

It is an arithmetic number, because the mean of its divisors is an integer number (36576000).

Almost surely, 2^4423913280 is an apocalyptic number.

4423913280 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 4423913280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8193024000).

4423913280 is an abundant number, since it is smaller than the sum of its proper divisors (11962134720).

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

4423913280 is a wasteful number, since it uses less digits than its factorization.

4423913280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339 (or 323 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 4423913280 is about 66512.5046889681. The cubic root of 4423913280 is about 1641.6057641465.

Subtracting from 4423913280 its reverse (823193244), we obtain a square (3600720036 = 60006²).

The spelling of 4423913280 in words is "four billion, four hundred twenty-three million, nine hundred thirteen thousand, two hundred eighty".