40034405 has 8 divisors (see below), whose sum is σ = 50867352. Its totient is φ = 30143488.

The previous prime is 40034399. The next prime is 40034411. The reversal of 40034405 is 50443004.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40034399) and next prime (40034411).

It can be written as a sum of positive squares in 4 ways, for example, as 708964 + 39325441 = 842^2 + 6271^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 40034405 - 2⁴ = 40034389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235412 + ... + 235581.

It is an arithmetic number, because the mean of its divisors is an integer number (6358419).

Almost surely, 2^40034405 is an apocalyptic number.

It is an amenable number.

40034405 is a deficient number, since it is larger than the sum of its proper divisors (10832947).

40034405 is a wasteful number, since it uses less digits than its factorization.

40034405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471015.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 40034405 is about 6327.2746897855. The cubic root of 40034405 is about 342.0932141069.

Adding to 40034405 its reverse (50443004), we get a palindrome (90477409).

The spelling of 40034405 in words is "forty million, thirty-four thousand, four hundred five".