40149317 has 8 divisors (see below), whose sum is σ = 43405824. Its totient is φ = 36916848.

The previous prime is 40149287. The next prime is 40149331. The reversal of 40149317 is 71394104.

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 40149317 - 2²⁰ = 39100741 is a prime.

It is a super-2 number, since 2×40149317² = 3223935311132978, 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 40149317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40149397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2453 + ... + 9290.

It is an arithmetic number, because the mean of its divisors is an integer number (5425728).

Almost surely, 2^40149317 is an apocalyptic number.

It is an amenable number.

40149317 is a deficient number, since it is larger than the sum of its proper divisors (3256507).

40149317 is a wasteful number, since it uses less digits than its factorization.

40149317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12019.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 40149317 is about 6336.3488698145. The cubic root of 40149317 is about 342.4202083825.

It can be divided in two parts, 4014 and 9317, that added together give a palindrome (13331).

The spelling of 40149317 in words is "forty million, one hundred forty-nine thousand, three hundred seventeen".