40207417 has 2 divisors, whose sum is σ = 40207418. Its totient is φ = 40207416.

The previous prime is 40207399. The next prime is 40207423. The reversal of 40207417 is 71470204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22810176 + 17397241 = 4776^2 + 4171^2 .

It is a cyclic number.

It is not a de Polignac number, because 40207417 - 2¹⁵ = 40174649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40207391 and 40207400.

It is not a weakly prime, because it can be changed into another prime (40207487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20103708 + 20103709.

It is an arithmetic number, because the mean of its divisors is an integer number (20103709).

Almost surely, 2^40207417 is an apocalyptic number.

It is an amenable number.

40207417 is a deficient number, since it is larger than the sum of its proper divisors (1).

40207417 is an equidigital number, since it uses as much as digits as its factorization.

40207417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 40207417 is about 6340.9318715785. The cubic root of 40207417 is about 342.5853006499.

The spelling of 40207417 in words is "forty million, two hundred seven thousand, four hundred seventeen".