68442080 has 96 divisors (see below), whose sum is σ = 188443584. Its totient is φ = 23003136.

The previous prime is 68442067. The next prime is 68442091. The reversal of 68442080 is 8024486.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 58784 + ... + 59936.

It is an arithmetic number, because the mean of its divisors is an integer number (1962954).

Almost surely, 2^68442080 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 68442080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94221792).

68442080 is an abundant number, since it is smaller than the sum of its proper divisors (120001504).

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

68442080 is a wasteful number, since it uses less digits than its factorization.

68442080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228 (or 1220 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 68442080 is about 8272.9728634875. The cubic root of 68442080 is about 409.0481189512.

The spelling of 68442080 in words is "sixty-eight million, four hundred forty-two thousand, eighty".