40431359 has 2 divisors, whose sum is σ = 40431360. Its totient is φ = 40431358.

The previous prime is 40431337. The next prime is 40431367. The reversal of 40431359 is 95313404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40431359 - 2¹² = 40427263 is a prime.

It is a Chen prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40431329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20215679 + 20215680.

It is an arithmetic number, because the mean of its divisors is an integer number (20215680).

Almost surely, 2^40431359 is an apocalyptic number.

40431359 is a deficient number, since it is larger than the sum of its proper divisors (1).

40431359 is an equidigital number, since it uses as much as digits as its factorization.

40431359 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 40431359 is about 6358.5657974106. The cubic root of 40431359 is about 343.2201523649.

The spelling of 40431359 in words is "forty million, four hundred thirty-one thousand, three hundred fifty-nine".