191492004 has 24 divisors (see below), whose sum is σ = 487434528. Its totient is φ = 58027840.

The previous prime is 191491999. The next prime is 191492011. The reversal of 191492004 is 400294191.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 725217 + ... + 725480.

It is an arithmetic number, because the mean of its divisors is an integer number (20309772).

Almost surely, 2^191492004 is an apocalyptic number.

It is an amenable number.

191492004 is an abundant number, since it is smaller than the sum of its proper divisors (295942524).

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

191492004 is a wasteful number, since it uses less digits than its factorization.

191492004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450715 (or 1450713 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 191492004 is about 13838.0635928586. The cubic root of 191492004 is about 576.3905891494.

The spelling of 191492004 in words is "one hundred ninety-one million, four hundred ninety-two thousand, four".