40224917 has 2 divisors, whose sum is σ = 40224918. Its totient is φ = 40224916.

The previous prime is 40224911. The next prime is 40224929. The reversal of 40224917 is 71942204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37834801 + 2390116 = 6151^2 + 1546^2 .

It is a cyclic number.

It is not a de Polignac number, because 40224917 - 2⁴ = 40224901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40224917.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40224911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20112458 + 20112459.

It is an arithmetic number, because the mean of its divisors is an integer number (20112459).

Almost surely, 2^40224917 is an apocalyptic number.

It is an amenable number.

40224917 is a deficient number, since it is larger than the sum of its proper divisors (1).

40224917 is an equidigital number, since it uses as much as digits as its factorization.

40224917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 40224917 is about 6342.3116448185. The cubic root of 40224917 is about 342.6349960678.

The spelling of 40224917 in words is "forty million, two hundred twenty-four thousand, nine hundred seventeen".