40159331 has 8 divisors (see below), whose sum is σ = 42905280. Its totient is φ = 37476648.

The previous prime is 40159313. The next prime is 40159333. The reversal of 40159331 is 13395104.

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 40159331 - 2⁶ = 40159267 is a prime.

It is a super-2 number, since 2×40159331² = 3225543732735122, which contains 22 as substring.

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 40159331.

It is not an unprimeable number, because it can be changed into a prime (40159333) by changing a digit.

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, 14501 + ... + 17046.

It is an arithmetic number, because the mean of its divisors is an integer number (5363160).

Almost surely, 2^40159331 is an apocalyptic number.

40159331 is a deficient number, since it is larger than the sum of its proper divisors (2745949).

40159331 is a wasteful number, since it uses less digits than its factorization.

40159331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31633.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 40159331 is about 6337.1390232502. The cubic root of 40159331 is about 342.4486747109.

The spelling of 40159331 in words is "forty million, one hundred fifty-nine thousand, three hundred thirty-one".