40317849 has 24 divisors (see below), whose sum is σ = 68420352. Its totient is φ = 22554720.

The previous prime is 40317841. The next prime is 40317857. The reversal of 40317849 is 94871304.

It is a happy number.

40317849 is nontrivially palindromic in base 2.

It is an interprime number because it is at equal distance from previous prime (40317841) and next prime (40317857).

It is not a de Polignac number, because 40317849 - 2³ = 40317841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40317841) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14377 + ... + 16950.

It is an arithmetic number, because the mean of its divisors is an integer number (2850848).

Almost surely, 2^40317849 is an apocalyptic number.

It is an amenable number.

40317849 is a deficient number, since it is larger than the sum of its proper divisors (28102503).

40317849 is a wasteful number, since it uses less digits than its factorization.

40317849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31357 (or 31354 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 40317849 is about 6349.6337689665. The cubic root of 40317849 is about 342.8986573986.

The spelling of 40317849 in words is "forty million, three hundred seventeen thousand, eight hundred forty-nine".