40190171 has 4 divisors (see below), whose sum is σ = 45931632. Its totient is φ = 34448712.

The previous prime is 40190141. The next prime is 40190173. The reversal of 40190171 is 17109104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40190171 - 2¹⁰ = 40189147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40190173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2870720 + ... + 2870733.

It is an arithmetic number, because the mean of its divisors is an integer number (11482908).

Almost surely, 2^40190171 is an apocalyptic number.

40190171 is a deficient number, since it is larger than the sum of its proper divisors (5741461).

40190171 is an equidigital number, since it uses as much as digits as its factorization.

40190171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5741460.

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 40190171 is about 6339.5718309678. The cubic root of 40190171 is about 342.5363124161.

Adding to 40190171 its reverse (17109104), we get a palindrome (57299275).

The spelling of 40190171 in words is "forty million, one hundred ninety thousand, one hundred seventy-one".