40318959 has 4 divisors (see below), whose sum is σ = 53758616. Its totient is φ = 26879304.

The previous prime is 40318939. The next prime is 40318981. The reversal of 40318959 is 95981304.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 40318959 - 2¹² = 40314863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40318909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6719824 + ... + 6719829.

It is an arithmetic number, because the mean of its divisors is an integer number (13439654).

Almost surely, 2^40318959 is an apocalyptic number.

40318959 is a deficient number, since it is larger than the sum of its proper divisors (13439657).

40318959 is a wasteful number, since it uses less digits than its factorization.

40318959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13439656.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 40318959 is about 6349.7211749808. The cubic root of 40318959 is about 342.9018041771.

The spelling of 40318959 in words is "forty million, three hundred eighteen thousand, nine hundred fifty-nine".