40269517 has 2 divisors, whose sum is σ = 40269518. Its totient is φ = 40269516.

The previous prime is 40269511. The next prime is 40269529. The reversal of 40269517 is 71596204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31203396 + 9066121 = 5586^2 + 3011^2 .

It is a cyclic number.

It is not a de Polignac number, because 40269517 - 2¹⁹ = 39745229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40269511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20134758 + 20134759.

It is an arithmetic number, because the mean of its divisors is an integer number (20134759).

Almost surely, 2^40269517 is an apocalyptic number.

It is an amenable number.

40269517 is a deficient number, since it is larger than the sum of its proper divisors (1).

40269517 is an equidigital number, since it uses as much as digits as its factorization.

40269517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 40269517 is about 6345.8267388891. The cubic root of 40269517 is about 342.7615832478.

The spelling of 40269517 in words is "forty million, two hundred sixty-nine thousand, five hundred seventeen".