67226816 has 28 divisors (see below), whose sum is σ = 134663688. Its totient is φ = 33295872.

The previous prime is 67226767. The next prime is 67226821. The reversal of 67226816 is 61862276.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 67226816.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1940 + ... + 11756.

Almost surely, 2^67226816 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 67226816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67331844).

67226816 is an abundant number, since it is smaller than the sum of its proper divisors (67436872).

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

67226816 is a wasteful number, since it uses less digits than its factorization.

67226816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9936 (or 9926 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 67226816 is about 8199.1960581511. The cubic root of 67226816 is about 406.6126142737.

The spelling of 67226816 in words is "sixty-seven million, two hundred twenty-six thousand, eight hundred sixteen".