40722043 has 2 divisors, whose sum is σ = 40722044. Its totient is φ = 40722042.

The previous prime is 40722023. The next prime is 40722049. The reversal of 40722043 is 34022704.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40722043 - 2⁹ = 40721531 is a prime.

It is not a weakly prime, because it can be changed into another prime (40722049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20361021 + 20361022.

It is an arithmetic number, because the mean of its divisors is an integer number (20361022).

Almost surely, 2^40722043 is an apocalyptic number.

40722043 is a deficient number, since it is larger than the sum of its proper divisors (1).

40722043 is an equidigital number, since it uses as much as digits as its factorization.

40722043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 40722043 is about 6381.3825304553. The cubic root of 40722043 is about 344.0407238384.

Adding to 40722043 its reverse (34022704), we get a palindrome (74744747).

The spelling of 40722043 in words is "forty million, seven hundred twenty-two thousand, forty-three".