40041431 has 8 divisors (see below), whose sum is σ = 41644800. Its totient is φ = 38452960.

The previous prime is 40041389. The next prime is 40041451. The reversal of 40041431 is 13414004.

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-40041431 is a prime.

It is a super-2 number, since 2×40041431² = 3206632393055522, 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 (40041451) 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, 1925 + ... + 9153.

It is an arithmetic number, because the mean of its divisors is an integer number (5205600).

Almost surely, 2^40041431 is an apocalyptic number.

40041431 is a deficient number, since it is larger than the sum of its proper divisors (1603369).

40041431 is a wasteful number, since it uses less digits than its factorization.

40041431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7449.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 40041431 is about 6327.8298807727. The cubic root of 40041431 is about 342.1132252809.

Adding to 40041431 its reverse (13414004), we get a palindrome (53455435).

The spelling of 40041431 in words is "forty million, forty-one thousand, four hundred thirty-one".