194057980 has 12 divisors (see below), whose sum is σ = 407521800. Its totient is φ = 77623184.

The previous prime is 194057977. The next prime is 194057989. The reversal of 194057980 is 89750491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194057989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4851430 + ... + 4851469.

It is an arithmetic number, because the mean of its divisors is an integer number (33960150).

Almost surely, 2^194057980 is an apocalyptic number.

194057980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

194057980 is an abundant number, since it is smaller than the sum of its proper divisors (213463820).

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

194057980 is a wasteful number, since it uses less digits than its factorization.

194057980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9702908 (or 9702906 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 194057980 is about 13930.4694823972. The cubic root of 194057980 is about 578.9537022390.

The spelling of 194057980 in words is "one hundred ninety-four million, fifty-seven thousand, nine hundred eighty".