194042880 has 132 divisors (see below), whose sum is σ = 672513192. Its totient is φ = 51732480.

The previous prime is 194042869. The next prime is 194042899. The reversal of 194042880 is 88240491.

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 11 ways as a sum of consecutive naturals, for example, 43975 + ... + 48185.

Almost surely, 2^194042880 is an apocalyptic number.

194042880 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 194042880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (336256596).

194042880 is an abundant number, since it is smaller than the sum of its proper divisors (478470312).

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

194042880 is a wasteful number, since it uses less digits than its factorization.

194042880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4242 (or 4221 counting only the distinct ones).

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

The square root of 194042880 is about 13929.9274944272. The cubic root of 194042880 is about 578.9386853736.

The spelling of 194042880 in words is "one hundred ninety-four million, forty-two thousand, eight hundred eighty".