190240691 has 8 divisors (see below), whose sum is σ = 195717600. Its totient is φ = 184833792.

The previous prime is 190240657. The next prime is 190240703. The reversal of 190240691 is 196042091.

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

It is a cyclic number.

It is not a de Polignac number, because 190240691 - 2⁶ = 190240627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190240601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11966 + ... + 22883.

It is an arithmetic number, because the mean of its divisors is an integer number (24464700).

Almost surely, 2^190240691 is an apocalyptic number.

190240691 is a deficient number, since it is larger than the sum of its proper divisors (5476909).

190240691 is a wasteful number, since it uses less digits than its factorization.

190240691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35005.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 190240691 is about 13792.7767690194. The cubic root of 190240691 is about 575.1323612114.

The spelling of 190240691 in words is "one hundred ninety million, two hundred forty thousand, six hundred ninety-one".