73384240320 has 672 divisors, whose sum is σ = 269102433600. Its totient is φ = 18331729920.

The previous prime is 73384240253. The next prime is 73384240327. The reversal of 73384240320 is 2304248337.

73384240320 is a `hidden beast` number, since 7 + 3 + 384 + 240 + 32 + 0 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (73384240327) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 492511606 + ... + 492511754.

It is an arithmetic number, because the mean of its divisors is an integer number (400450050).

Almost surely, 2^73384240320 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 73384240320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134551216800).

73384240320 is an abundant number, since it is smaller than the sum of its proper divisors (195718193280).

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

73384240320 is a wasteful number, since it uses less digits than its factorization.

73384240320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 36.

Adding to 73384240320 its reverse (2304248337), we get a palindrome (75688488657).

The spelling of 73384240320 in words is "seventy-three billion, three hundred eighty-four million, two hundred forty thousand, three hundred twenty".