193421834 has 8 divisors (see below), whose sum is σ = 299491968. Its totient is φ = 93591180.

The previous prime is 193421819. The next prime is 193421929. The reversal of 193421834 is 438124391.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 193421794 and 193421803.

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, 1559792 + ... + 1559915.

It is an arithmetic number, because the mean of its divisors is an integer number (37436496).

Almost surely, 2^193421834 is an apocalyptic number.

193421834 is a deficient number, since it is larger than the sum of its proper divisors (106070134).

193421834 is a wasteful number, since it uses less digits than its factorization.

193421834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3119740.

The product of its digits is 20736, while the sum is 35.

The square root of 193421834 is about 13907.6178405937. The cubic root of 193421834 is about 578.3203824795.

The spelling of 193421834 in words is "one hundred ninety-three million, four hundred twenty-one thousand, eight hundred thirty-four".