68029936 has 60 divisors (see below), whose sum is σ = 144548040. Its totient is φ = 31000320.

The previous prime is 68029933. The next prime is 68029961. The reversal of 68029936 is 63992086.

It is a junction number, because it is equal to n+sod(n) for n = 68029892 and 68029901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68029933) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 375766 + ... + 375946.

It is an arithmetic number, because the mean of its divisors is an integer number (2409134).

Almost surely, 2^68029936 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 68029936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72274020).

68029936 is an abundant number, since it is smaller than the sum of its proper divisors (76518104).

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

68029936 is a wasteful number, since it uses less digits than its factorization.

68029936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 68029936 is about 8248.0261881253. The cubic root of 68029936 is about 408.2253976922.

The spelling of 68029936 in words is "sixty-eight million, twenty-nine thousand, nine hundred thirty-six".