40432043 has 2 divisors, whose sum is σ = 40432044. Its totient is φ = 40432042.

The previous prime is 40432037. The next prime is 40432087. The reversal of 40432043 is 34023404.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40432043 - 2¹⁰ = 40431019 is a prime.

It is not a weakly prime, because it can be changed into another prime (40432013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20216021 + 20216022.

It is an arithmetic number, because the mean of its divisors is an integer number (20216022).

Almost surely, 2^40432043 is an apocalyptic number.

40432043 is a deficient number, since it is larger than the sum of its proper divisors (1).

40432043 is an equidigital number, since it uses as much as digits as its factorization.

40432043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 40432043 is about 6358.6195828969. The cubic root of 40432043 is about 343.2220878366. Note that the first 3 decimals are identical.

Adding to 40432043 its reverse (34023404), we get a palindrome (74455447).

The spelling of 40432043 in words is "forty million, four hundred thirty-two thousand, forty-three".