194019424 has 24 divisors (see below), whose sum is σ = 384991488. Its totient is φ = 96243840.

The previous prime is 194019409. The next prime is 194019437. The reversal of 194019424 is 424910491.

It is a self number, because there is not a number n which added to its sum of digits gives 194019424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19807 + ... + 27934.

It is an arithmetic number, because the mean of its divisors is an integer number (16041312).

Almost surely, 2^194019424 is an apocalyptic number.

It is an amenable number.

194019424 is a deficient number, since it is larger than the sum of its proper divisors (190972064).

194019424 is a wasteful number, since it uses less digits than its factorization.

194019424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47878 (or 47870 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 194019424 is about 13929.0855406951. The cubic root of 194019424 is about 578.9153569680.

The spelling of 194019424 in words is "one hundred ninety-four million, nineteen thousand, four hundred twenty-four".