194233878 has 12 divisors (see below), whose sum is σ = 420840108. Its totient is φ = 64744620.

The previous prime is 194233877. The next prime is 194233883. The reversal of 194233878 is 878332491.

194233878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194233877) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5395368 + ... + 5395403.

It is an arithmetic number, because the mean of its divisors is an integer number (35070009).

Almost surely, 2^194233878 is an apocalyptic number.

194233878 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

194233878 is an abundant number, since it is smaller than the sum of its proper divisors (226606230).

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

194233878 is a wasteful number, since it uses less digits than its factorization.

194233878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10790779 (or 10790776 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 194233878 is about 13936.7814792369. The cubic root of 194233878 is about 579.1285744513.

The spelling of 194233878 in words is "one hundred ninety-four million, two hundred thirty-three thousand, eight hundred seventy-eight".