68009184 has 36 divisors (see below), whose sum is σ = 193401936. Its totient is φ = 22669632.

The previous prime is 68009171. The next prime is 68009191. The reversal of 68009184 is 48190086.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117784 + ... + 118359.

It is an arithmetic number, because the mean of its divisors is an integer number (5372276).

Almost surely, 2^68009184 is an apocalyptic number.

It is an amenable number.

68009184 is an abundant number, since it is smaller than the sum of its proper divisors (125392752).

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

68009184 is a wasteful number, since it uses less digits than its factorization.

68009184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236159 (or 236148 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 68009184 is about 8246.7680942294. The cubic root of 68009184 is about 408.1838848157.

The spelling of 68009184 in words is "sixty-eight million, nine thousand, one hundred eighty-four".