40875818 has 4 divisors (see below), whose sum is σ = 61313730. Its totient is φ = 20437908.

The previous prime is 40875817. The next prime is 40875823. The reversal of 40875818 is 81857804.

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

It can be written as a sum of positive squares in only one way, i.e., 23843689 + 17032129 = 4883^2 + 4127^2 .

It is not an unprimeable number, because it can be changed into a prime (40875817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10218953 + ... + 10218956.

Almost surely, 2^40875818 is an apocalyptic number.

40875818 is a deficient number, since it is larger than the sum of its proper divisors (20437912).

40875818 is a wasteful number, since it uses less digits than its factorization.

40875818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20437911.

The product of its (nonzero) digits is 71680, while the sum is 41.

The square root of 40875818 is about 6393.4198986145. The cubic root of 40875818 is about 344.4732365881.

The spelling of 40875818 in words is "forty million, eight hundred seventy-five thousand, eight hundred eighteen".