194038730 has 16 divisors (see below), whose sum is σ = 358710120. Its totient is φ = 75517632.

The previous prime is 194038727. The next prime is 194038759. The reversal of 194038730 is 37830491.

194038730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 161010721 + 33028009 = 12689^2 + 5747^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261845 + ... + 262584.

Almost surely, 2^194038730 is an apocalyptic number.

194038730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

194038730 is a deficient number, since it is larger than the sum of its proper divisors (164671390).

194038730 is a wasteful number, since it uses less digits than its factorization.

194038730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524473.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 194038730 is about 13929.7785337743. The cubic root of 194038730 is about 578.9345580854.

The spelling of 194038730 in words is "one hundred ninety-four million, thirty-eight thousand, seven hundred thirty".