68176290 has 192 divisors, whose sum is σ = 216297216. Its totient is φ = 13418496.

The previous prime is 68176271. The next prime is 68176309. The reversal of 68176290 is 9267186.

It is an interprime number because it is at equal distance from previous prime (68176271) and next prime (68176309).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 603274 + ... + 603386.

It is an arithmetic number, because the mean of its divisors is an integer number (1126548).

Almost surely, 2^68176290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68176290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108148608).

68176290 is an abundant number, since it is smaller than the sum of its proper divisors (148120926).

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

68176290 is a wasteful number, since it uses less digits than its factorization.

68176290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 68176290 is about 8256.8934836293. The cubic root of 68176290 is about 408.5179288469.

The spelling of 68176290 in words is "sixty-eight million, one hundred seventy-six thousand, two hundred ninety".