40434405 has 64 divisors (see below), whose sum is σ = 74511360. Its totient is φ = 18547200.

The previous prime is 40434379. The next prime is 40434421. The reversal of 40434405 is 50443404.

It is not a de Polignac number, because 40434405 - 2⁹ = 40433893 is a prime.

It is a super-2 number, since 2×40434405² = 3269882215408050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 290826 + ... + 290964.

It is an arithmetic number, because the mean of its divisors is an integer number (1164240).

Almost surely, 2^40434405 is an apocalyptic number.

It is an amenable number.

40434405 is a deficient number, since it is larger than the sum of its proper divisors (34076955).

40434405 is a wasteful number, since it uses less digits than its factorization.

40434405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 40434405 is about 6358.8053123209. The cubic root of 40434405 is about 343.2287712715.

Adding to 40434405 its reverse (50443404), we get a palindrome (90877809).

It can be divided in two parts, 4043 and 4405, that added together give a palindrome (8448).

The spelling of 40434405 in words is "forty million, four hundred thirty-four thousand, four hundred five".