40140271 has 4 divisors (see below), whose sum is σ = 41119344. Its totient is φ = 39161200.

The previous prime is 40140259. The next prime is 40140283. The reversal of 40140271 is 17204104.

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

It is an interprime number because it is at equal distance from previous prime (40140259) and next prime (40140283).

It is a cyclic number.

It is not a de Polignac number, because 40140271 - 2¹⁵ = 40107503 is a prime.

It is a super-2 number, since 2×40140271² = 3222482711906882, 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 (40140241) 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 3 ways as a sum of consecutive naturals, for example, 489475 + ... + 489556.

It is an arithmetic number, because the mean of its divisors is an integer number (10279836).

Almost surely, 2^40140271 is an apocalyptic number.

40140271 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

40140271 is a deficient number, since it is larger than the sum of its proper divisors (979073).

40140271 is an equidigital number, since it uses as much as digits as its factorization.

40140271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979072.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 40140271 is about 6335.6350115833. The cubic root of 40140271 is about 342.3944896730.

Adding to 40140271 its reverse (17204104), we get a palindrome (57344375).

The spelling of 40140271 in words is "forty million, one hundred forty thousand, two hundred seventy-one".