194538338 has 4 divisors (see below), whose sum is σ = 291807510. Its totient is φ = 97269168.

The previous prime is 194538329. The next prime is 194538353. The reversal of 194538338 is 833835491.

194538338 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 191739409 + 2798929 = 13847^2 + 1673^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48634583 + ... + 48634586.

Almost surely, 2^194538338 is an apocalyptic number.

194538338 is a deficient number, since it is larger than the sum of its proper divisors (97269172).

194538338 is an equidigital number, since it uses as much as digits as its factorization.

194538338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97269171.

The product of its digits is 311040, while the sum is 44.

The square root of 194538338 is about 13947.7000971486. The cubic root of 194538338 is about 579.4310095710.

The spelling of 194538338 in words is "one hundred ninety-four million, five hundred thirty-eight thousand, three hundred thirty-eight".