194066208 has 72 divisors (see below), whose sum is σ = 630721728. Its totient is φ = 55446912.

The previous prime is 194066207. The next prime is 194066227. The reversal of 194066208 is 802660491.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (194066207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46116 + ... + 50147.

It is an arithmetic number, because the mean of its divisors is an integer number (8760024).

Almost surely, 2^194066208 is an apocalyptic number.

194066208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

194066208 is an abundant number, since it is smaller than the sum of its proper divisors (436655520).

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

194066208 is a wasteful number, since it uses less digits than its factorization.

194066208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96286 (or 96275 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 194066208 is about 13930.7648031255. The cubic root of 194066208 is about 578.9618846109.

The spelling of 194066208 in words is "one hundred ninety-four million, sixty-six thousand, two hundred eight".