72340733 has 8 divisors (see below), whose sum is σ = 76636320. Its totient is φ = 68094000.

The previous prime is 72340691. The next prime is 72340781. The reversal of 72340733 is 33704327.

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

It is a cyclic number.

It is not a de Polignac number, because 72340733 - 2⁶ = 72340669 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72340696 and 72340705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72340783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9143 + ... + 15108.

It is an arithmetic number, because the mean of its divisors is an integer number (9579540).

Almost surely, 2^72340733 is an apocalyptic number.

It is an amenable number.

72340733 is a deficient number, since it is larger than the sum of its proper divisors (4295587).

72340733 is a wasteful number, since it uses less digits than its factorization.

72340733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24427.

The product of its (nonzero) digits is 10584, while the sum is 29.

The square root of 72340733 is about 8505.3355606937. The cubic root of 72340733 is about 416.6719850699.

The spelling of 72340733 in words is "seventy-two million, three hundred forty thousand, seven hundred thirty-three".