40864567 has 8 divisors (see below), whose sum is σ = 42811200. Its totient is φ = 38953824.

The previous prime is 40864561. The next prime is 40864609. The reversal of 40864567 is 76546804.

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 40864567 - 2³ = 40864559 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 (40864561) 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, 6628 + ... + 11209.

It is an arithmetic number, because the mean of its divisors is an integer number (5351400).

Almost surely, 2^40864567 is an apocalyptic number.

40864567 is a deficient number, since it is larger than the sum of its proper divisors (1946633).

40864567 is a wasteful number, since it uses less digits than its factorization.

40864567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17945.

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 40864567 is about 6392.5399490343. The cubic root of 40864567 is about 344.4416284620.

The spelling of 40864567 in words is "forty million, eight hundred sixty-four thousand, five hundred sixty-seven".