40620539 has 2 divisors, whose sum is σ = 40620540. Its totient is φ = 40620538.

The previous prime is 40620527. The next prime is 40620551. The reversal of 40620539 is 93502604.

It is a balanced prime because it is at equal distance from previous prime (40620527) and next prime (40620551).

It is a cyclic number.

It is not a de Polignac number, because 40620539 - 2⁴ = 40620523 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40620589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20310269 + 20310270.

It is an arithmetic number, because the mean of its divisors is an integer number (20310270).

Almost surely, 2^40620539 is an apocalyptic number.

40620539 is a deficient number, since it is larger than the sum of its proper divisors (1).

40620539 is an equidigital number, since it uses as much as digits as its factorization.

40620539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 40620539 is about 6373.4244327520. The cubic root of 40620539 is about 343.7546333701.

The spelling of 40620539 in words is "forty million, six hundred twenty thousand, five hundred thirty-nine".