193434836 has 12 divisors (see below), whose sum is σ = 386869728. Its totient is φ = 82900632.

The previous prime is 193434827. The next prime is 193434841. The reversal of 193434836 is 638434391.

193434836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

193434836 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 193434793 and 193434802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3454166 + ... + 3454221.

It is an arithmetic number, because the mean of its divisors is an integer number (32239144).

Almost surely, 2^193434836 is an apocalyptic number.

It is an amenable number.

193434836 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

193434836 is a wasteful number, since it uses less digits than its factorization.

193434836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6908398 (or 6908396 counting only the distinct ones).

The product of its digits is 186624, while the sum is 41.

The square root of 193434836 is about 13908.0852744006. The cubic root of 193434836 is about 578.3333406048. Note that the first 4 decimals are identical.

The spelling of 193434836 in words is "one hundred ninety-three million, four hundred thirty-four thousand, eight hundred thirty-six".