40217653 has 4 divisors (see below), whose sum is σ = 45963040. Its totient is φ = 34472268.

The previous prime is 40217651. The next prime is 40217659. The reversal of 40217653 is 35671204.

40217653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 40217653 - 2¹ = 40217651 is a prime.

It is a super-2 number, since 2×40217653² = 3234919225656818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40217651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2872683 + ... + 2872696.

It is an arithmetic number, because the mean of its divisors is an integer number (11490760).

Almost surely, 2^40217653 is an apocalyptic number.

It is an amenable number.

40217653 is a deficient number, since it is larger than the sum of its proper divisors (5745387).

40217653 is an equidigital number, since it uses as much as digits as its factorization.

40217653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5745386.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 40217653 is about 6341.7389571000. The cubic root of 40217653 is about 342.6143699598.

Adding to 40217653 its reverse (35671204), we get a palindrome (75888857).

The spelling of 40217653 in words is "forty million, two hundred seventeen thousand, six hundred fifty-three".