40218886 has 8 divisors (see below), whose sum is σ = 61317504. Its totient is φ = 19779720.

The previous prime is 40218883. The next prime is 40218917. The reversal of 40218886 is 68881204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40218883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164710 + ... + 164953.

It is an arithmetic number, because the mean of its divisors is an integer number (7664688).

Almost surely, 2^40218886 is an apocalyptic number.

40218886 is a deficient number, since it is larger than the sum of its proper divisors (21098618).

40218886 is a wasteful number, since it uses less digits than its factorization.

40218886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329726.

The product of its (nonzero) digits is 24576, while the sum is 37.

The square root of 40218886 is about 6341.8361694386. The cubic root of 40218886 is about 342.6178712349.

The spelling of 40218886 in words is "forty million, two hundred eighteen thousand, eight hundred eighty-six".