190074894 has 8 divisors (see below), whose sum is σ = 380149800. Its totient is φ = 63358296.

The previous prime is 190074889. The next prime is 190074901. The reversal of 190074894 is 498470091.

It is a sphenic number, since it is the product of 3 distinct primes.

190074894 is an admirable number.

It is a super-2 number, since 2×190074894² = 72256930658222472, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15839569 + ... + 15839580.

It is an arithmetic number, because the mean of its divisors is an integer number (47518725).

Almost surely, 2^190074894 is an apocalyptic number.

190074894 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

190074894 is a wasteful number, since it uses less digits than its factorization.

190074894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31679154.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 190074894 is about 13786.7651753412. The cubic root of 190074894 is about 574.9652344450.

The spelling of 190074894 in words is "one hundred ninety million, seventy-four thousand, eight hundred ninety-four".