194900938 has 16 divisors (see below), whose sum is σ = 305217000. Its totient is φ = 93223872.

The previous prime is 194900933. The next prime is 194900947. The reversal of 194900938 is 839009491.

It can be written as a sum of positive squares in 4 ways, for example, as 194239969 + 660969 = 13937^2 + 813^2 .

It is a junction number, because it is equal to n+sod(n) for n = 194900894 and 194900903.

It is not an unprimeable number, because it can be changed into a prime (194900933) 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, 9093 + ... + 21736.

Almost surely, 2^194900938 is an apocalyptic number.

194900938 is a deficient number, since it is larger than the sum of its proper divisors (110316062).

194900938 is a wasteful number, since it uses less digits than its factorization.

194900938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30969.

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 194900938 is about 13960.6926045952. The cubic root of 194900938 is about 579.7907866121.

The spelling of 194900938 in words is "one hundred ninety-four million, nine hundred thousand, nine hundred thirty-eight".