40231959 has 8 divisors (see below), whose sum is σ = 54443520. Its totient is φ = 26420856.

The previous prime is 40231951. The next prime is 40231963. The reversal of 40231959 is 95913204.

40231959 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 not a de Polignac number, because 40231959 - 2³ = 40231951 is a prime.

It is a super-2 number, since 2×40231959² = 3237221049955362, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40231951) 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, 99879 + ... + 100280.

It is an arithmetic number, because the mean of its divisors is an integer number (6805440).

Almost surely, 2^40231959 is an apocalyptic number.

40231959 is a deficient number, since it is larger than the sum of its proper divisors (14211561).

40231959 is a wasteful number, since it uses less digits than its factorization.

40231959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200229.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 40231959 is about 6342.8667808807. The cubic root of 40231959 is about 342.6549894371.

It can be divided in two parts, 4023195 and 9, that added together give a palindrome (4023204).

The spelling of 40231959 in words is "forty million, two hundred thirty-one thousand, nine hundred fifty-nine".