68021874 has 48 divisors (see below), whose sum is σ = 153404160. Its totient is φ = 21759840.

The previous prime is 68021869. The next prime is 68021897. The reversal of 68021874 is 47812086.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77124 + ... + 78000.

It is an arithmetic number, because the mean of its divisors is an integer number (3195920).

Almost surely, 2^68021874 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68021874, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76702080).

68021874 is an abundant number, since it is smaller than the sum of its proper divisors (85382286).

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

68021874 is a wasteful number, since it uses less digits than its factorization.

68021874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055 (or 1052 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 68021874 is about 8247.5374506576. The cubic root of 68021874 is about 408.2092712467.

The spelling of 68021874 in words is "sixty-eight million, twenty-one thousand, eight hundred seventy-four".