40620269 has 2 divisors, whose sum is σ = 40620270. Its totient is φ = 40620268.

The previous prime is 40620263. The next prime is 40620289. The reversal of 40620269 is 96202604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37515625 + 3104644 = 6125^2 + 1762^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40620269 is a prime.

It is a super-2 number, since 2×40620269² = 3300012507264722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40620263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20310134 + 20310135.

It is an arithmetic number, because the mean of its divisors is an integer number (20310135).

Almost surely, 2^40620269 is an apocalyptic number.

It is an amenable number.

40620269 is a deficient number, since it is larger than the sum of its proper divisors (1).

40620269 is an equidigital number, since it uses as much as digits as its factorization.

40620269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 40620269 is about 6373.4032510112. The cubic root of 40620269 is about 343.7538717360.

The spelling of 40620269 in words is "forty million, six hundred twenty thousand, two hundred sixty-nine".