68378394 has 16 divisors (see below), whose sum is σ = 156293568. Its totient is φ = 19536672.

The previous prime is 68378393. The next prime is 68378411. The reversal of 68378394 is 49387386.

It is not an unprimeable number, because it can be changed into a prime (68378393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 813987 + ... + 814070.

It is an arithmetic number, because the mean of its divisors is an integer number (9768348).

Almost surely, 2^68378394 is an apocalyptic number.

68378394 is an abundant number, since it is smaller than the sum of its proper divisors (87915174).

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

68378394 is a wasteful number, since it uses less digits than its factorization.

68378394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1628069.

The product of its digits is 870912, while the sum is 48.

The square root of 68378394 is about 8269.1229280982. The cubic root of 68378394 is about 408.9212052026.

The spelling of 68378394 in words is "sixty-eight million, three hundred seventy-eight thousand, three hundred ninety-four".