194428080 has 480 divisors, whose sum is σ = 854945280. Its totient is φ = 40158720.

The previous prime is 194428079. The next prime is 194428097. The reversal of 194428080 is 80824491.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1164157 + ... + 1164323.

It is an arithmetic number, because the mean of its divisors is an integer number (1781136).

Almost surely, 2^194428080 is an apocalyptic number.

194428080 is a gapful number since it is divisible by the number (10) 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 194428080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (427472640).

194428080 is an abundant number, since it is smaller than the sum of its proper divisors (660517200).

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

194428080 is a wasteful number, since it uses less digits than its factorization.

194428080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214 (or 195 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 194428080 is about 13943.7469856563. The cubic root of 194428080 is about 579.3215213361.

The spelling of 194428080 in words is "one hundred ninety-four million, four hundred twenty-eight thousand, eighty".