40431067 has 2 divisors, whose sum is σ = 40431068. Its totient is φ = 40431066.

The previous prime is 40431059. The next prime is 40431089. The reversal of 40431067 is 76013404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40431067 - 2³ = 40431059 is a prime.

It is not a weakly prime, because it can be changed into another prime (40431367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20215533 + 20215534.

It is an arithmetic number, because the mean of its divisors is an integer number (20215534).

Almost surely, 2^40431067 is an apocalyptic number.

40431067 is a deficient number, since it is larger than the sum of its proper divisors (1).

40431067 is an equidigital number, since it uses as much as digits as its factorization.

40431067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 40431067 is about 6358.5428362165. The cubic root of 40431067 is about 343.2193261042.

The spelling of 40431067 in words is "forty million, four hundred thirty-one thousand, sixty-seven".