194411808 has 72 divisors (see below), whose sum is σ = 555350796. Its totient is φ = 64512000.

The previous prime is 194411797. The next prime is 194411809. The reversal of 194411808 is 808114491.

194411808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 190771344 + 3640464 = 13812^2 + 1908^2 .

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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194411809) 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, 68008 + ... + 70808.

Almost surely, 2^194411808 is an apocalyptic number.

194411808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 194411808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277675398).

194411808 is an abundant number, since it is smaller than the sum of its proper divisors (360938988).

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

194411808 is a wasteful number, since it uses less digits than its factorization.

194411808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3058 (or 3047 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 194411808 is about 13943.1634860960. The cubic root of 194411808 is about 579.3053594340.

The spelling of 194411808 in words is "one hundred ninety-four million, four hundred eleven thousand, eight hundred eight".