40564875 has 64 divisors (see below), whose sum is σ = 74535552. Its totient is φ = 19468800.

The previous prime is 40564871. The next prime is 40564883. The reversal of 40564875 is 57846504.

It is not a de Polignac number, because 40564875 - 2² = 40564871 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40564871) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 258297 + ... + 258453.

It is an arithmetic number, because the mean of its divisors is an integer number (1164618).

Almost surely, 2^40564875 is an apocalyptic number.

40564875 is a deficient number, since it is larger than the sum of its proper divisors (33970677).

40564875 is a wasteful number, since it uses less digits than its factorization.

40564875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 40564875 is about 6369.0560525089. The cubic root of 40564875 is about 343.5975412074.

The spelling of 40564875 in words is "forty million, five hundred sixty-four thousand, eight hundred seventy-five".