68426384 has 40 divisors (see below), whose sum is σ = 145141752. Its totient is φ = 31057920.

The previous prime is 68426383. The next prime is 68426387. The reversal of 68426384 is 48362486.

It can be written as a sum of positive squares in 4 ways, for example, as 2166784 + 66259600 = 1472^2 + 8140^2 .

It is not an unprimeable number, because it can be changed into a prime (68426381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9992 + ... + 15384.

Almost surely, 2^68426384 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 68426384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72570876).

68426384 is an abundant number, since it is smaller than the sum of its proper divisors (76715368).

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

68426384 is a wasteful number, since it uses less digits than its factorization.

68426384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5475 (or 5469 counting only the distinct ones).

The product of its digits is 221184, while the sum is 41.

The square root of 68426384 is about 8272.0241779144. The cubic root of 68426384 is about 409.0168472047.

The spelling of 68426384 in words is "sixty-eight million, four hundred twenty-six thousand, three hundred eighty-four".