72758418 has 8 divisors (see below), whose sum is σ = 145516848. Its totient is φ = 24252804.

The previous prime is 72758417. The next prime is 72758423. The reversal of 72758418 is 81485727.

It is a sphenic number, since it is the product of 3 distinct primes.

72758418 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 72758418.

It is not an unprimeable number, because it can be changed into a prime (72758417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6063196 + ... + 6063207.

It is an arithmetic number, because the mean of its divisors is an integer number (18189606).

Almost surely, 2^72758418 is an apocalyptic number.

72758418 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

72758418 is a wasteful number, since it uses less digits than its factorization.

72758418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12126408.

The product of its digits is 125440, while the sum is 42.

The square root of 72758418 is about 8529.8545122411. The cubic root of 72758418 is about 417.4723813109.

The spelling of 72758418 in words is "seventy-two million, seven hundred fifty-eight thousand, four hundred eighteen".