40434271 has 4 divisors (see below), whose sum is σ = 40554592. Its totient is φ = 40313952.

The previous prime is 40434227. The next prime is 40434281. The reversal of 40434271 is 17243404.

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 40434271 - 2²⁵ = 6879839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40434221) 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, 59655 + ... + 60328.

It is an arithmetic number, because the mean of its divisors is an integer number (10138648).

Almost surely, 2^40434271 is an apocalyptic number.

40434271 is a deficient number, since it is larger than the sum of its proper divisors (120321).

40434271 is a wasteful number, since it uses less digits than its factorization.

40434271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120320.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 40434271 is about 6358.7947757417. The cubic root of 40434271 is about 343.2283921167.

Adding to 40434271 its reverse (17243404), we get a palindrome (57677675).

The spelling of 40434271 in words is "forty million, four hundred thirty-four thousand, two hundred seventy-one".