194045544 has 160 divisors (see below), whose sum is σ = 677793600. Its totient is φ = 50388480.

The previous prime is 194045539. The next prime is 194045557. The reversal of 194045544 is 445540491.

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

It is a junction number, because it is equal to n+sod(n) for n = 194045499 and 194045508.

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 39 ways as a sum of consecutive naturals, for example, 47952 + ... + 51840.

It is an arithmetic number, because the mean of its divisors is an integer number (4236210).

Almost surely, 2^194045544 is an apocalyptic number.

194045544 is a gapful number since it is divisible by the number (14) 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 194045544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338896800).

194045544 is an abundant number, since it is smaller than the sum of its proper divisors (483748056).

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

194045544 is a wasteful number, since it uses less digits than its factorization.

194045544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3925 (or 3912 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 194045544 is about 13930.0231155587. The cubic root of 194045544 is about 578.9413347633.

The spelling of 194045544 in words is "one hundred ninety-four million, forty-five thousand, five hundred forty-four".