40219339 has 2 divisors, whose sum is σ = 40219340. Its totient is φ = 40219338.

The previous prime is 40219321. The next prime is 40219349. The reversal of 40219339 is 93391204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40219339 - 2⁷ = 40219211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40219339.

It is not a weakly prime, because it can be changed into another prime (40219349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20109669 + 20109670.

It is an arithmetic number, because the mean of its divisors is an integer number (20109670).

Almost surely, 2^40219339 is an apocalyptic number.

40219339 is a deficient number, since it is larger than the sum of its proper divisors (1).

40219339 is an equidigital number, since it uses as much as digits as its factorization.

40219339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 40219339 is about 6341.8718845464. The cubic root of 40219339 is about 342.6191575735.

The spelling of 40219339 in words is "forty million, two hundred nineteen thousand, three hundred thirty-nine".