68384394 has 24 divisors (see below), whose sum is σ = 159564132. Its totient is φ = 21041280.

The previous prime is 68384383. The next prime is 68384417. The reversal of 68384394 is 49348386.

It can be written as a sum of positive squares in 2 ways, for example, as 65367225 + 3017169 = 8085^2 + 1737^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 145887 + ... + 146354.

Almost surely, 2^68384394 is an apocalyptic number.

68384394 is an abundant number, since it is smaller than the sum of its proper divisors (91179738).

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

68384394 is a wasteful number, since it uses less digits than its factorization.

68384394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292262 (or 292259 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 68384394 is about 8269.4857155690. The cubic root of 68384394 is about 408.9331653913.

The spelling of 68384394 in words is "sixty-eight million, three hundred eighty-four thousand, three hundred ninety-four".