194145472 has 28 divisors (see below), whose sum is σ = 386110480. Its totient is φ = 96857856.

The previous prime is 194145451. The next prime is 194145481. The reversal of 194145472 is 274541491.

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, 28054 + ... + 34282.

It is an arithmetic number, because the mean of its divisors is an integer number (13789660).

Almost surely, 2^194145472 is an apocalyptic number.

It is an amenable number.

194145472 is a deficient number, since it is larger than the sum of its proper divisors (191965008).

194145472 is an equidigital number, since it uses as much as digits as its factorization.

194145472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6728 (or 6718 counting only the distinct ones).

The product of its digits is 40320, while the sum is 37.

The square root of 194145472 is about 13933.6094390506. The cubic root of 194145472 is about 579.0406972129.

The spelling of 194145472 in words is "one hundred ninety-four million, one hundred forty-five thousand, four hundred seventy-two".