194441538 has 16 divisors (see below), whose sum is σ = 397157760. Its totient is φ = 63434736.

The previous prime is 194441537. The next prime is 194441551. The reversal of 194441538 is 835144491.

194441538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 194441496 and 194441505.

It is not an unprimeable number, because it can be changed into a prime (194441531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344473 + ... + 345036.

It is an arithmetic number, because the mean of its divisors is an integer number (24822360).

Almost surely, 2^194441538 is an apocalyptic number.

194441538 is an abundant number, since it is smaller than the sum of its proper divisors (202716222).

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

194441538 is a wasteful number, since it uses less digits than its factorization.

194441538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689561.

The product of its digits is 69120, while the sum is 39.

The square root of 194441538 is about 13944.2295592119. The cubic root of 194441538 is about 579.3348875967.

The spelling of 194441538 in words is "one hundred ninety-four million, four hundred forty-one thousand, five hundred thirty-eight".