40435919 has 2 divisors, whose sum is σ = 40435920. Its totient is φ = 40435918.

The previous prime is 40435883. The next prime is 40435937. The reversal of 40435919 is 91953404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40435919 - 2²⁰ = 39387343 is a prime.

It is a super-2 number, since 2×40435919² = 3270127090749122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40435939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20217959 + 20217960.

It is an arithmetic number, because the mean of its divisors is an integer number (20217960).

Almost surely, 2^40435919 is an apocalyptic number.

40435919 is a deficient number, since it is larger than the sum of its proper divisors (1).

40435919 is an equidigital number, since it uses as much as digits as its factorization.

40435919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 40435919 is about 6358.9243587261. The cubic root of 40435919 is about 343.2330550976.

The spelling of 40435919 in words is "forty million, four hundred thirty-five thousand, nine hundred nineteen".