68867344 has 120 divisors (see below), whose sum is σ = 173660760. Its totient is φ = 26191872.

The previous prime is 68867303. The next prime is 68867347. The reversal of 68867344 is 44376886.

It can be written as a sum of positive squares in 4 ways, for example, as 176400 + 68690944 = 420^2 + 8288^2 .

It is a super-2 number, since 2×68867344² = 9485422139228672, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68867294 and 68867303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68867347) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 295452 + ... + 295684.

It is an arithmetic number, because the mean of its divisors is an integer number (1447173).

Almost surely, 2^68867344 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 68867344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86830380).

68867344 is an abundant number, since it is smaller than the sum of its proper divisors (104793416).

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

68867344 is a wasteful number, since it uses less digits than its factorization.

68867344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297 (or 284 counting only the distinct ones).

The product of its digits is 774144, while the sum is 46.

The square root of 68867344 is about 8298.6350684917. The cubic root of 68867344 is about 409.8935753916.

The spelling of 68867344 in words is "sixty-eight million, eight hundred sixty-seven thousand, three hundred forty-four".