240022191 has 8 divisors (see below), whose sum is σ = 320586544. Its totient is φ = 159736320.

The previous prime is 240022187. The next prime is 240022217. The reversal of 240022191 is 191220042.

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

It is not a de Polignac number, because 240022191 - 2² = 240022187 is a prime.

It is a super-2 number, since 2×240022191² = 115221304344880962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240022121) by changing a digit.

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, 67600 + ... + 71061.

It is an arithmetic number, because the mean of its divisors is an integer number (40073318).

Almost surely, 2^240022191 is an apocalyptic number.

240022191 is a deficient number, since it is larger than the sum of its proper divisors (80564353).

240022191 is a wasteful number, since it uses less digits than its factorization.

240022191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139241.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 240022191 is about 15492.6495797201. The cubic root of 240022191 is about 621.4656540995.

The spelling of 240022191 in words is "two hundred forty million, twenty-two thousand, one hundred ninety-one".