194444425 has 24 divisors (see below), whose sum is σ = 276768000. Its totient is φ = 132746880.

The previous prime is 194444381. The next prime is 194444473. The reversal of 194444425 is 524444491.

It is not a de Polignac number, because 194444425 - 2²³ = 186055817 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39501 + ... + 44149.

It is an arithmetic number, because the mean of its divisors is an integer number (11532000).

Almost surely, 2^194444425 is an apocalyptic number.

It is an amenable number.

194444425 is a deficient number, since it is larger than the sum of its proper divisors (82323575).

194444425 is a wasteful number, since it uses less digits than its factorization.

194444425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4905 (or 4900 counting only the distinct ones).

The product of its digits is 92160, while the sum is 37.

The square root of 194444425 is about 13944.3330783512. Note that the first 3 decimals coincide. The cubic root of 194444425 is about 579.3377548365.

It can be divided in two parts, 19 and 4444425, that added together give a palindrome (4444444).

The spelling of 194444425 in words is "one hundred ninety-four million, four hundred forty-four thousand, four hundred twenty-five".