194940392 has 16 divisors (see below), whose sum is σ = 365663040. Its totient is φ = 97430256.

The previous prime is 194940391. The next prime is 194940401. The reversal of 194940392 is 293049491.

It is a super-2 number, since 2×194940392² = 76003512866227328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (194940391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31073 + ... + 36815.

It is an arithmetic number, because the mean of its divisors is an integer number (22853940).

Almost surely, 2^194940392 is an apocalyptic number.

It is an amenable number.

194940392 is a deficient number, since it is larger than the sum of its proper divisors (170722648).

194940392 is a wasteful number, since it uses less digits than its factorization.

194940392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9992 (or 9988 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 194940392 is about 13962.1055718684. The cubic root of 194940392 is about 579.8299065236.

The spelling of 194940392 in words is "one hundred ninety-four million, nine hundred forty thousand, three hundred ninety-two".