4543729920 has 216 divisors, whose sum is σ = 16549041600. Its totient is φ = 1147834368.

The previous prime is 4543729919. The next prime is 4543729937. The reversal of 4543729920 is 299273454.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 208501 + ... + 229259.

Almost surely, 2^4543729920 is an apocalyptic number.

4543729920 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 4543729920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8274520800).

4543729920 is an abundant number, since it is smaller than the sum of its proper divisors (12005311680).

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

4543729920 is a wasteful number, since it uses less digits than its factorization.

4543729920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20805 (or 20788 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 4543729920 is about 67407.1948682038. The cubic root of 4543729920 is about 1656.2942836243.

It can be divided in two parts, 45437 and 29920, that added together give a palindrome (75357).

The spelling of 4543729920 in words is "four billion, five hundred forty-three million, seven hundred twenty-nine thousand, nine hundred twenty".