40218006 has 8 divisors (see below), whose sum is σ = 80436024. Its totient is φ = 13406000.

The previous prime is 40217993. The next prime is 40218011. The reversal of 40218006 is 60081204.

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

40218006 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3351495 + ... + 3351506.

It is an arithmetic number, because the mean of its divisors is an integer number (10054503).

Almost surely, 2^40218006 is an apocalyptic number.

40218006 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40218006 is a wasteful number, since it uses less digits than its factorization.

40218006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6703006.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 40218006 is about 6341.7667885219. The cubic root of 40218006 is about 342.6153723598.

The spelling of 40218006 in words is "forty million, two hundred eighteen thousand, six".