40454017 has 2 divisors, whose sum is σ = 40454018. Its totient is φ = 40454016.

The previous prime is 40453993. The next prime is 40454053. The reversal of 40454017 is 71045404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39992976 + 461041 = 6324^2 + 679^2 .

It is a cyclic number.

It is not a de Polignac number, because 40454017 - 2²³ = 32065409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40453982 and 40454000.

It is not a weakly prime, because it can be changed into another prime (40454417) 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, 20227008 + 20227009.

It is an arithmetic number, because the mean of its divisors is an integer number (20227009).

Almost surely, 2^40454017 is an apocalyptic number.

It is an amenable number.

40454017 is a deficient number, since it is larger than the sum of its proper divisors (1).

40454017 is an equidigital number, since it uses as much as digits as its factorization.

40454017 is an odious number, because the sum of its binary digits is odd.

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

The square root of 40454017 is about 6360.3472389485. The cubic root of 40454017 is about 343.2842546702.

The spelling of 40454017 in words is "forty million, four hundred fifty-four thousand, seventeen".