194678780 has 12 divisors (see below), whose sum is σ = 408825480. Its totient is φ = 77871504.

The previous prime is 194678779. The next prime is 194678833. The reversal of 194678780 is 87876491.

194678780 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4866950 + ... + 4866989.

It is an arithmetic number, because the mean of its divisors is an integer number (34068790).

Almost surely, 2^194678780 is an apocalyptic number.

194678780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

194678780 is an abundant number, since it is smaller than the sum of its proper divisors (214146700).

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

194678780 is a wasteful number, since it uses less digits than its factorization.

194678780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9733948 (or 9733946 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 50.

The square root of 194678780 is about 13952.7337823095. The cubic root of 194678780 is about 579.5704111854.

The spelling of 194678780 in words is "one hundred ninety-four million, six hundred seventy-eight thousand, seven hundred eighty".