194172256 has 24 divisors (see below), whose sum is σ = 398898864. Its totient is φ = 92864640.

The previous prime is 194172241. The next prime is 194172271. The reversal of 194172256 is 652271491.

It is an interprime number because it is at equal distance from previous prime (194172241) and next prime (194172271).

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 131175 + ... + 132646.

It is an arithmetic number, because the mean of its divisors is an integer number (16620786).

Almost surely, 2^194172256 is an apocalyptic number.

194172256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

194172256 is an abundant number, since it is smaller than the sum of its proper divisors (204726608).

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

194172256 is a wasteful number, since it uses less digits than its factorization.

194172256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263854 (or 263846 counting only the distinct ones).

The product of its digits is 30240, while the sum is 37.

The square root of 194172256 is about 13934.5705351834. The cubic root of 194172256 is about 579.0673238325.

The spelling of 194172256 in words is "one hundred ninety-four million, one hundred seventy-two thousand, two hundred fifty-six".