68662272 has 176 divisors, whose sum is σ = 217997312. Its totient is φ = 18800640.

The previous prime is 68662163. The next prime is 68662273. The reversal of 68662272 is 27226686.

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

It is a self number, because there is not a number n which added to its sum of digits gives 68662272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68662273) 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, 666573 + ... + 666675.

Almost surely, 2^68662272 is an apocalyptic number.

68662272 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68662272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108998656).

68662272 is an abundant number, since it is smaller than the sum of its proper divisors (149335040).

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

68662272 is a wasteful number, since it uses less digits than its factorization.

68662272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 146 counting only the distinct ones).

The product of its digits is 96768, while the sum is 39.

The square root of 68662272 is about 8286.2700897328. The cubic root of 68662272 is about 409.4863128494.

The spelling of 68662272 in words is "sixty-eight million, six hundred sixty-two thousand, two hundred seventy-two".