40591069 has 8 divisors (see below), whose sum is σ = 41477760. Its totient is φ = 39713856.

The previous prime is 40591063. The next prime is 40591073. The reversal of 40591069 is 96019504.

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 40591069 - 2⁵ = 40591037 is a prime.

It is a super-2 number, since 2×40591069² = 3295269765125522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40591063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6654 + ... + 11200.

It is an arithmetic number, because the mean of its divisors is an integer number (5184720).

Almost surely, 2^40591069 is an apocalyptic number.

It is an amenable number.

40591069 is a deficient number, since it is larger than the sum of its proper divisors (886691).

40591069 is a wasteful number, since it uses less digits than its factorization.

40591069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4739.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 40591069 is about 6371.1120693330. The cubic root of 40591069 is about 343.6714824966.

The spelling of 40591069 in words is "forty million, five hundred ninety-one thousand, sixty-nine".