72682224 has 20 divisors (see below), whose sum is σ = 187762536. Its totient is φ = 24227392.

The previous prime is 72682223. The next prime is 72682229. The reversal of 72682224 is 42228627.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72682223) 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, 757059 + ... + 757154.

Almost surely, 2^72682224 is an apocalyptic number.

It is an amenable number.

72682224 is an abundant number, since it is smaller than the sum of its proper divisors (115080312).

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

72682224 is a wasteful number, since it uses less digits than its factorization.

72682224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1514224 (or 1514218 counting only the distinct ones).

The product of its digits is 21504, while the sum is 33.

The square root of 72682224 is about 8525.3870293377. The cubic root of 72682224 is about 417.3266020706.

The spelling of 72682224 in words is "seventy-two million, six hundred eighty-two thousand, two hundred twenty-four".