40598939 has 2 divisors, whose sum is σ = 40598940. Its totient is φ = 40598938.

The previous prime is 40598911. The next prime is 40598947. The reversal of 40598939 is 93989504.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40598939 - 2⁸ = 40598683 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 40598893 and 40598902.

It is not a weakly prime, because it can be changed into another prime (40598989) 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, 20299469 + 20299470.

It is an arithmetic number, because the mean of its divisors is an integer number (20299470).

Almost surely, 2^40598939 is an apocalyptic number.

40598939 is a deficient number, since it is larger than the sum of its proper divisors (1).

40598939 is an equidigital number, since it uses as much as digits as its factorization.

40598939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 40598939 is about 6371.7296709763. The cubic root of 40598939 is about 343.6936919781.

The spelling of 40598939 in words is "forty million, five hundred ninety-eight thousand, nine hundred thirty-nine".