194193904 has 10 divisors (see below), whose sum is σ = 376250720. Its totient is φ = 97096944.

The previous prime is 194193877. The next prime is 194193911. The reversal of 194193904 is 409391491.

194193904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×194193904² = 75422544701522432, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6068544 + ... + 6068575.

It is an arithmetic number, because the mean of its divisors is an integer number (37625072).

Almost surely, 2^194193904 is an apocalyptic number.

It is an amenable number.

194193904 is a deficient number, since it is larger than the sum of its proper divisors (182056816).

194193904 is a wasteful number, since it uses less digits than its factorization.

194193904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12137127 (or 12137121 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 194193904 is about 13935.3472866664. The cubic root of 194193904 is about 579.0888428415.

The spelling of 194193904 in words is "one hundred ninety-four million, one hundred ninety-three thousand, nine hundred four".