40034591 has 8 divisors (see below), whose sum is σ = 41293824. Its totient is φ = 38790360.

The previous prime is 40034581. The next prime is 40034597. The reversal of 40034591 is 19543004.

40034591 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40034591 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40034591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40034597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1796 + ... + 9126.

It is an arithmetic number, because the mean of its divisors is an integer number (5161728).

Almost surely, 2^40034591 is an apocalyptic number.

40034591 is a deficient number, since it is larger than the sum of its proper divisors (1259233).

40034591 is a wasteful number, since it uses less digits than its factorization.

40034591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7501.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 40034591 is about 6327.2893880397. The cubic root of 40034591 is about 342.0937438949.

Adding to 40034591 its reverse (19543004), we get a palindrome (59577595).

The spelling of 40034591 in words is "forty million, thirty-four thousand, five hundred ninety-one".