72235333404 has 72 divisors (see below), whose sum is σ = 196939863120. Its totient is φ = 22192434432.

The previous prime is 72235333393. The next prime is 72235333409. The reversal of 72235333404 is 40433353227.

72235333404 is a `hidden beast` number, since 72 + 23 + 533 + 34 + 0 + 4 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72235333409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 191304 + ... + 425520.

Almost surely, 2^72235333404 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 72235333404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98469931560).

72235333404 is an abundant number, since it is smaller than the sum of its proper divisors (124704529716).

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

72235333404 is a wasteful number, since it uses less digits than its factorization.

72235333404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234899 (or 234894 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 36.

The spelling of 72235333404 in words is "seventy-two billion, two hundred thirty-five million, three hundred thirty-three thousand, four hundred four".