40004434 has 8 divisors (see below), whose sum is σ = 63536508. Its totient is φ = 18825600.

The previous prime is 40004413. The next prime is 40004467. The reversal of 40004434 is 43440004.

It can be written as a sum of positive squares in 2 ways, for example, as 32524209 + 7480225 = 5703^2 + 2735^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 588267 + ... + 588334.

Almost surely, 2^40004434 is an apocalyptic number.

40004434 is a deficient number, since it is larger than the sum of its proper divisors (23532074).

40004434 is a wasteful number, since it uses less digits than its factorization.

40004434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176620.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 40004434 is about 6324.9058491016. The cubic root of 40004434 is about 342.0078255907.

Adding to 40004434 its reverse (43440004), we get a palindrome (83444438).

The spelling of 40004434 in words is "forty million, four thousand, four hundred thirty-four".