194045392 has 20 divisors (see below), whose sum is σ = 382128196. Its totient is φ = 95431680.

The previous prime is 194045381. The next prime is 194045407. The reversal of 194045392 is 293540491.

It can be written as a sum of positive squares in 2 ways, for example, as 96746896 + 97298496 = 9836^2 + 9864^2 .

It is a super-2 number, since 2×194045392² = 75307228312867328, which contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 98433 + ... + 100384.

Almost surely, 2^194045392 is an apocalyptic number.

It is an amenable number.

194045392 is a deficient number, since it is larger than the sum of its proper divisors (188082804).

194045392 is a wasteful number, since it uses less digits than its factorization.

194045392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198886 (or 198880 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 194045392 is about 13930.0176597160. The cubic root of 194045392 is about 578.9411835976.

The spelling of 194045392 in words is "one hundred ninety-four million, forty-five thousand, three hundred ninety-two".