194938278 has 16 divisors (see below), whose sum is σ = 391125936. Its totient is φ = 64771200.

The previous prime is 194938277. The next prime is 194938321. The reversal of 194938278 is 872839491.

It is a self number, because there is not a number n which added to its sum of digits gives 194938278.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194938273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50023 + ... + 53778.

It is an arithmetic number, because the mean of its divisors is an integer number (24445371).

Almost surely, 2^194938278 is an apocalyptic number.

194938278 is an abundant number, since it is smaller than the sum of its proper divisors (196187658).

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

194938278 is a wasteful number, since it uses less digits than its factorization.

194938278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104119.

The product of its digits is 870912, while the sum is 51.

The square root of 194938278 is about 13962.0298667493. The cubic root of 194938278 is about 579.8278105584.

The spelling of 194938278 in words is "one hundred ninety-four million, nine hundred thirty-eight thousand, two hundred seventy-eight".