68533344 has 96 divisors (see below), whose sum is σ = 218090880. Its totient is φ = 20764800.

The previous prime is 68533319. The next prime is 68533363. The reversal of 68533344 is 44333586.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a junction number, because it is equal to n+sod(n) for n = 68533299 and 68533308.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5899 + ... + 13109.

It is an arithmetic number, because the mean of its divisors is an integer number (2271780).

Almost surely, 2^68533344 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 68533344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109045440).

68533344 is an abundant number, since it is smaller than the sum of its proper divisors (149557536).

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

68533344 is a wasteful number, since it uses less digits than its factorization.

68533344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7241 (or 7227 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 68533344 is about 8278.4868182537. The cubic root of 68533344 is about 409.2298530864.

The spelling of 68533344 in words is "sixty-eight million, five hundred thirty-three thousand, three hundred forty-four".