68213328 has 40 divisors (see below), whose sum is σ = 176813088. Its totient is φ = 22660992.

The previous prime is 68213293. The next prime is 68213359. The reversal of 68213328 is 82331286.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12975 + ... + 17457.

Almost surely, 2^68213328 is an apocalyptic number.

It is an amenable number.

68213328 is an abundant number, since it is smaller than the sum of its proper divisors (108599760).

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

68213328 is a wasteful number, since it uses less digits than its factorization.

68213328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4811 (or 4805 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 68213328 is about 8259.1360322978. The cubic root of 68213328 is about 408.5918937002.

The spelling of 68213328 in words is "sixty-eight million, two hundred thirteen thousand, three hundred twenty-eight".