40132439 has 2 divisors, whose sum is σ = 40132440. Its totient is φ = 40132438.

The previous prime is 40132429. The next prime is 40132511. The reversal of 40132439 is 93423104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40132439 - 2¹⁶ = 40066903 is a prime.

It is a super-2 number, since 2×40132439² = 3221225320177442, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40132429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20066219 + 20066220.

It is an arithmetic number, because the mean of its divisors is an integer number (20066220).

Almost surely, 2^40132439 is an apocalyptic number.

40132439 is a deficient number, since it is larger than the sum of its proper divisors (1).

40132439 is an equidigital number, since it uses as much as digits as its factorization.

40132439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 40132439 is about 6335.0168902695. The cubic root of 40132439 is about 342.3722193693.

The spelling of 40132439 in words is "forty million, one hundred thirty-two thousand, four hundred thirty-nine".