40231339 has 2 divisors, whose sum is σ = 40231340. Its totient is φ = 40231338.

The previous prime is 40231319. The next prime is 40231343. The reversal of 40231339 is 93313204.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40231339 - 2⁵ = 40231307 is a prime.

It is not a weakly prime, because it can be changed into another prime (40231319) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20115669 + 20115670.

It is an arithmetic number, because the mean of its divisors is an integer number (20115670).

Almost surely, 2^40231339 is an apocalyptic number.

40231339 is a deficient number, since it is larger than the sum of its proper divisors (1).

40231339 is an equidigital number, since it uses as much as digits as its factorization.

40231339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 40231339 is about 6342.8179068928. The cubic root of 40231339 is about 342.6532292511.

The spelling of 40231339 in words is "forty million, two hundred thirty-one thousand, three hundred thirty-nine".