68831224 has 64 divisors (see below), whose sum is σ = 169401600. Its totient is φ = 25401600.

The previous prime is 68831219. The next prime is 68831227. The reversal of 68831224 is 42213886.

It is a self number, because there is not a number n which added to its sum of digits gives 68831224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68831227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8764 + ... + 14644.

It is an arithmetic number, because the mean of its divisors is an integer number (2646900).

Almost surely, 2^68831224 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 68831224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84700800).

68831224 is an abundant number, since it is smaller than the sum of its proper divisors (100570376).

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

68831224 is a wasteful number, since it uses less digits than its factorization.

68831224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5924 (or 5920 counting only the distinct ones).

The product of its digits is 18432, while the sum is 34.

The square root of 68831224 is about 8296.4585215621. The cubic root of 68831224 is about 409.8219016285.

The spelling of 68831224 in words is "sixty-eight million, eight hundred thirty-one thousand, two hundred twenty-four".