68021382 has 32 divisors (see below), whose sum is σ = 159828480. Its totient is φ = 19026720.

The previous prime is 68021381. The next prime is 68021383. The reversal of 68021382 is 28312086.

It is an interprime number because it is at equal distance from previous prime (68021381) and next prime (68021383).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68021381) 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, 38782 + ... + 40497.

It is an arithmetic number, because the mean of its divisors is an integer number (4994640).

Almost surely, 2^68021382 is an apocalyptic number.

68021382 is an abundant number, since it is smaller than the sum of its proper divisors (91807098).

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

68021382 is a wasteful number, since it uses less digits than its factorization.

68021382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79308.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 68021382 is about 8247.5076235188. The cubic root of 68021382 is about 408.2082870562.

The spelling of 68021382 in words is "sixty-eight million, twenty-one thousand, three hundred eighty-two".