194779944 has 128 divisors (see below), whose sum is σ = 588288000. Its totient is φ = 59486400.

The previous prime is 194779919. The next prime is 194779957. The reversal of 194779944 is 449977491.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126459 + ... + 127989.

It is an arithmetic number, because the mean of its divisors is an integer number (4596000).

Almost surely, 2^194779944 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 194779944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294144000).

194779944 is an abundant number, since it is smaller than the sum of its proper divisors (393508056).

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

194779944 is a wasteful number, since it uses less digits than its factorization.

194779944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1596 (or 1586 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The square root of 194779944 is about 13956.3585508542. The cubic root of 194779944 is about 579.6707842343.

The spelling of 194779944 in words is "one hundred ninety-four million, seven hundred seventy-nine thousand, nine hundred forty-four".