40871664 has 30 divisors (see below), whose sum is σ = 114384296. Its totient is φ = 13623840.

The previous prime is 40871659. The next prime is 40871669. The reversal of 40871664 is 46617804.

It is an interprime number because it is at equal distance from previous prime (40871659) and next prime (40871669).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40871669) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 141772 + ... + 142059.

Almost surely, 2^40871664 is an apocalyptic number.

It is an amenable number.

40871664 is an abundant number, since it is smaller than the sum of its proper divisors (73512632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40871664 is a wasteful number, since it uses less digits than its factorization.

40871664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283845 (or 283836 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 40871664 is about 6393.0950251033. The cubic root of 40871664 is about 344.4615671759.

The spelling of 40871664 in words is "forty million, eight hundred seventy-one thousand, six hundred sixty-four".