68441136 has 80 divisors (see below), whose sum is σ = 183738240. Its totient is φ = 21936640.

The previous prime is 68441117. The next prime is 68441137. The reversal of 68441136 is 63114486.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 68441097 and 68441106.

It is not an unprimeable number, because it can be changed into a prime (68441137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163135 + ... + 163553.

It is an arithmetic number, because the mean of its divisors is an integer number (2296728).

Almost surely, 2^68441136 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 68441136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91869120).

68441136 is an abundant number, since it is smaller than the sum of its proper divisors (115297104).

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

68441136 is a wasteful number, since it uses less digits than its factorization.

68441136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554 (or 548 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 68441136 is about 8272.9158100394. The cubic root of 68441136 is about 409.0462383188.

The spelling of 68441136 in words is "sixty-eight million, four hundred forty-one thousand, one hundred thirty-six".