194942784 has 56 divisors (see below), whose sum is σ = 519033760. Its totient is φ = 64571904.

The previous prime is 194942771. The next prime is 194942789. The reversal of 194942784 is 487249491.

194942784 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194942789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28182 + ... + 34410.

It is an arithmetic number, because the mean of its divisors is an integer number (9268460).

Almost surely, 2^194942784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 194942784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259516880).

194942784 is an abundant number, since it is smaller than the sum of its proper divisors (324090976).

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

194942784 is a wasteful number, since it uses less digits than its factorization.

194942784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6407 (or 6397 counting only the distinct ones).

The product of its digits is 580608, while the sum is 48.

The square root of 194942784 is about 13962.1912320380. The cubic root of 194942784 is about 579.8322780989.

The spelling of 194942784 in words is "one hundred ninety-four million, nine hundred forty-two thousand, seven hundred eighty-four".