40504417 has 2 divisors, whose sum is σ = 40504418. Its totient is φ = 40504416.

The previous prime is 40504397. The next prime is 40504423. The reversal of 40504417 is 71440504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38738176 + 1766241 = 6224^2 + 1329^2 .

It is a cyclic number.

It is not a de Polignac number, because 40504417 - 2¹¹ = 40502369 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40504391 and 40504400.

It is not a weakly prime, because it can be changed into another prime (40504517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20252208 + 20252209.

It is an arithmetic number, because the mean of its divisors is an integer number (20252209).

Almost surely, 2^40504417 is an apocalyptic number.

It is an amenable number.

40504417 is a deficient number, since it is larger than the sum of its proper divisors (1).

40504417 is an equidigital number, since it uses as much as digits as its factorization.

40504417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 40504417 is about 6364.3080535122. The cubic root of 40504417 is about 343.4267567635.

The spelling of 40504417 in words is "forty million, five hundred four thousand, four hundred seventeen".