194271980 has 48 divisors (see below), whose sum is σ = 472664640. Its totient is φ = 65691648.

The previous prime is 194271949. The next prime is 194272033. The reversal of 194271980 is 89172491.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 716 + ... + 19724.

It is an arithmetic number, because the mean of its divisors is an integer number (9847180).

Almost surely, 2^194271980 is an apocalyptic number.

194271980 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 194271980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236332320).

194271980 is an abundant number, since it is smaller than the sum of its proper divisors (278392660).

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

194271980 is a wasteful number, since it uses less digits than its factorization.

194271980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19098 (or 19096 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 194271980 is about 13938.1483705692. The cubic root of 194271980 is about 579.1664403383.

The spelling of 194271980 in words is "one hundred ninety-four million, two hundred seventy-one thousand, nine hundred eighty".