40319339 has 2 divisors, whose sum is σ = 40319340. Its totient is φ = 40319338.

The previous prime is 40319333. The next prime is 40319351. The reversal of 40319339 is 93391304.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40319339 - 2¹⁶ = 40253803 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40319333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20159669 + 20159670.

It is an arithmetic number, because the mean of its divisors is an integer number (20159670).

Almost surely, 2^40319339 is an apocalyptic number.

40319339 is a deficient number, since it is larger than the sum of its proper divisors (1).

40319339 is an equidigital number, since it uses as much as digits as its factorization.

40319339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 40319339 is about 6349.7510974841. The cubic root of 40319339 is about 342.9028814393.

The spelling of 40319339 in words is "forty million, three hundred nineteen thousand, three hundred thirty-nine".