194193734 has 16 divisors (see below), whose sum is σ = 343643136. Its totient is φ = 80541000.

The previous prime is 194193731. The next prime is 194193743. The reversal of 194193734 is 437391491.

It is a happy number.

It is a super-2 number, since 2×194193734² = 75422412649725512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 194193691 and 194193700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194193731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223292 + ... + 224159.

It is an arithmetic number, because the mean of its divisors is an integer number (21477696).

Almost surely, 2^194193734 is an apocalyptic number.

194193734 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

194193734 is a deficient number, since it is larger than the sum of its proper divisors (149449402).

194193734 is a wasteful number, since it uses less digits than its factorization.

194193734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447491.

The product of its digits is 81648, while the sum is 41.

The square root of 194193734 is about 13935.3411870682. The cubic root of 194193734 is about 579.0886738607.

The spelling of 194193734 in words is "one hundred ninety-four million, one hundred ninety-three thousand, seven hundred thirty-four".