40434291 has 6 divisors (see below), whose sum is σ = 58405100. Its totient is φ = 26956188.

The previous prime is 40434281. The next prime is 40434307. The reversal of 40434291 is 19243404.

It is not a de Polignac number, because 40434291 - 2⁶ = 40434227 is a prime.

It is a Duffinian 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 5 ways as a sum of consecutive naturals, for example, 2246341 + ... + 2246358.

Almost surely, 2^40434291 is an apocalyptic number.

40434291 is a deficient number, since it is larger than the sum of its proper divisors (17970809).

40434291 is a wasteful number, since it uses less digits than its factorization.

40434291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4492705 (or 4492702 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 40434291 is about 6358.7963483666. The cubic root of 40434291 is about 343.2284487070.

Adding to 40434291 its reverse (19243404), we get a palindrome (59677695).

The spelling of 40434291 in words is "forty million, four hundred thirty-four thousand, two hundred ninety-one".