40291659 has 24 divisors (see below), whose sum is σ = 59966400. Its totient is φ = 26058240.

The previous prime is 40291633. The next prime is 40291663. The reversal of 40291659 is 95619204.

It is not a de Polignac number, because 40291659 - 2⁸ = 40291403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40221659) 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, 42907 + ... + 43835.

It is an arithmetic number, because the mean of its divisors is an integer number (2498600).

Almost surely, 2^40291659 is an apocalyptic number.

40291659 is a deficient number, since it is larger than the sum of its proper divisors (19674741).

40291659 is a wasteful number, since it uses less digits than its factorization.

40291659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075 (or 1072 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 40291659 is about 6347.5711102752. The cubic root of 40291659 is about 342.8243936725.

The spelling of 40291659 in words is "forty million, two hundred ninety-one thousand, six hundred fifty-nine".