193690830 has 16 divisors (see below), whose sum is σ = 464858064. Its totient is φ = 51650880.

The previous prime is 193690829. The next prime is 193690841. The reversal of 193690830 is 38096391.

It is a super-2 number, since 2×193690830² = 75032275252177800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3228151 + ... + 3228210.

It is an arithmetic number, because the mean of its divisors is an integer number (29053629).

Almost surely, 2^193690830 is an apocalyptic number.

193690830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

193690830 is an abundant number, since it is smaller than the sum of its proper divisors (271167234).

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

193690830 is a wasteful number, since it uses less digits than its factorization.

193690830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6456371.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 193690830 is about 13917.2852956315. The cubic root of 193690830 is about 578.5883525870.

The spelling of 193690830 in words is "one hundred ninety-three million, six hundred ninety thousand, eight hundred thirty".