4581329172 has 288 divisors, whose sum is σ = 13879756800. Its totient is φ = 1147426560.

The previous prime is 4581329147. The next prime is 4581329213. The reversal of 4581329172 is 2719231854.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 44478873 + ... + 44478975.

It is an arithmetic number, because the mean of its divisors is an integer number (48193600).

Almost surely, 2^4581329172 is an apocalyptic number.

4581329172 is a gapful number since it is divisible by the number (42) 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 4581329172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6939878400).

4581329172 is an abundant number, since it is smaller than the sum of its proper divisors (9298427628).

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

4581329172 is a wasteful number, since it uses less digits than its factorization.

4581329172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227 (or 194 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 4581329172 is about 67685.5167077862. The cubic root of 4581329172 is about 1660.8503375522.

The spelling of 4581329172 in words is "four billion, five hundred eighty-one million, three hundred twenty-nine thousand, one hundred seventy-two".