72341280 has 144 divisors (see below), whose sum is σ = 269365824. Its totient is φ = 17533440.

The previous prime is 72341263. The next prime is 72341287. The reversal of 72341280 is 8214327.

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (72341287) 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 23 ways as a sum of consecutive naturals, for example, 13557 + ... + 18123.

It is an arithmetic number, because the mean of its divisors is an integer number (1870596).

Almost surely, 2^72341280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72341280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134682912).

72341280 is an abundant number, since it is smaller than the sum of its proper divisors (197024544).

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

72341280 is a wasteful number, since it uses less digits than its factorization.

72341280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4599 (or 4588 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 72341280 is about 8505.3677169185. The cubic root of 72341280 is about 416.6730352804.

The spelling of 72341280 in words is "seventy-two million, three hundred forty-one thousand, two hundred eighty".