194209488 has 240 divisors, whose sum is σ = 649958400. Its totient is φ = 55520640.

The previous prime is 194209453. The next prime is 194209489. The reversal of 194209488 is 884902491.

194209488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194209489) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 812473 + ... + 812711.

It is an arithmetic number, because the mean of its divisors is an integer number (2708160).

Almost surely, 2^194209488 is an apocalyptic number.

194209488 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 194209488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324979200).

194209488 is an abundant number, since it is smaller than the sum of its proper divisors (455748912).

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

194209488 is a wasteful number, since it uses less digits than its factorization.

194209488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 194209488 is about 13935.9064290774. The cubic root of 194209488 is about 579.1043329933.

The spelling of 194209488 in words is "one hundred ninety-four million, two hundred nine thousand, four hundred eighty-eight".