40468217 has 4 divisors (see below), whose sum is σ = 40488336. Its totient is φ = 40448100.

The previous prime is 40468213. The next prime is 40468223. The reversal of 40468217 is 71286404.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40468217 - 2² = 40468213 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40468213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6659 + ... + 11192.

It is an arithmetic number, because the mean of its divisors is an integer number (10122084).

Almost surely, 2^40468217 is an apocalyptic number.

It is an amenable number.

40468217 is a deficient number, since it is larger than the sum of its proper divisors (20119).

40468217 is a wasteful number, since it uses less digits than its factorization.

40468217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20118.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 40468217 is about 6361.4634322615. The cubic root of 40468217 is about 343.3244160397.

The spelling of 40468217 in words is "forty million, four hundred sixty-eight thousand, two hundred seventeen".