40498517 has 2 divisors, whose sum is σ = 40498518. Its totient is φ = 40498516.

The previous prime is 40498501. The next prime is 40498559. The reversal of 40498517 is 71589404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30316036 + 10182481 = 5506^2 + 3191^2 .

It is a cyclic number.

It is not a de Polignac number, because 40498517 - 2⁴ = 40498501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40498597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20249258 + 20249259.

It is an arithmetic number, because the mean of its divisors is an integer number (20249259).

Almost surely, 2^40498517 is an apocalyptic number.

It is an amenable number.

40498517 is a deficient number, since it is larger than the sum of its proper divisors (1).

40498517 is an equidigital number, since it uses as much as digits as its factorization.

40498517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 40498517 is about 6363.8445141282. The cubic root of 40498517 is about 343.4100810822.

The spelling of 40498517 in words is "forty million, four hundred ninety-eight thousand, five hundred seventeen".