40439271 has 8 divisors (see below), whose sum is σ = 53962480. Its totient is φ = 26937792.

The previous prime is 40439219. The next prime is 40439281. The reversal of 40439271 is 17293404.

It is a happy number.

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

It is not a de Polignac number, because 40439271 - 2¹⁰ = 40438247 is a prime.

It is a super-2 number, since 2×40439271² = 3270669278022882, 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 (40439281) 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, 430 + ... + 9003.

It is an arithmetic number, because the mean of its divisors is an integer number (6745310).

Almost surely, 2^40439271 is an apocalyptic number.

40439271 is a deficient number, since it is larger than the sum of its proper divisors (13523209).

40439271 is a wasteful number, since it uses less digits than its factorization.

40439271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10865.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 40439271 is about 6359.1879198527. The cubic root of 40439271 is about 343.2425391194.

The spelling of 40439271 in words is "forty million, four hundred thirty-nine thousand, two hundred seventy-one".