4581318040 has 128 divisors (see below), whose sum is σ = 11411769600. Its totient is φ = 1644572160.

The previous prime is 4581318037. The next prime is 4581318041. The reversal of 4581318040 is 408131854.

It is a junction number, because it is equal to n+sod(n) for n = 4581317987 and 4581318005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4581318041) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 7400851 + ... + 7401469.

It is an arithmetic number, because the mean of its divisors is an integer number (89154450).

Almost surely, 2^4581318040 is an apocalyptic number.

4581318040 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 4581318040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5705884800).

4581318040 is an abundant number, since it is smaller than the sum of its proper divisors (6830451560).

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

4581318040 is a wasteful number, since it uses less digits than its factorization.

4581318040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017 (or 1013 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 4581318040 is about 67685.4344744865. The cubic root of 4581318040 is about 1660.8489923385.

Adding to 4581318040 its reverse (408131854), we get a palindrome (4989449894).

The spelling of 4581318040 in words is "four billion, five hundred eighty-one million, three hundred eighteen thousand, forty".