40546217 has 8 divisors (see below), whose sum is σ = 42374016. Its totient is φ = 38723872.

The previous prime is 40546213. The next prime is 40546229. The reversal of 40546217 is 71264504.

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

It is a cyclic number.

It is not a de Polignac number, because 40546217 - 2² = 40546213 is a prime.

It is a super-2 number, since 2×40546217² = 3287991426022178, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40546217.

It is not an unprimeable number, because it can be changed into a prime (40546213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24428 + ... + 26034.

It is an arithmetic number, because the mean of its divisors is an integer number (5296752).

Almost surely, 2^40546217 is an apocalyptic number.

It is an amenable number.

40546217 is a deficient number, since it is larger than the sum of its proper divisors (1827799).

40546217 is a wasteful number, since it uses less digits than its factorization.

40546217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2727.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 40546217 is about 6367.5911457945. The cubic root of 40546217 is about 343.5448533745.

The spelling of 40546217 in words is "forty million, five hundred forty-six thousand, two hundred seventeen".