194399044 has 24 divisors (see below), whose sum is σ = 397842368. Its totient is φ = 81375840.

The previous prime is 194399017. The next prime is 194399053. The reversal of 194399044 is 440993491.

It is a happy number.

It is a super-2 number, since 2×194399044² = 75581976616227872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

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 7 ways as a sum of consecutive naturals, for example, 79527 + ... + 81934.

Almost surely, 2^194399044 is an apocalyptic number.

194399044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

194399044 is an abundant number, since it is smaller than the sum of its proper divisors (203443324).

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

194399044 is a wasteful number, since it uses less digits than its factorization.

194399044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161515 (or 161513 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 194399044 is about 13942.7057632297. The cubic root of 194399044 is about 579.2926811653.

The spelling of 194399044 in words is "one hundred ninety-four million, three hundred ninety-nine thousand, forty-four".