40844519 has 2 divisors, whose sum is σ = 40844520. Its totient is φ = 40844518.

The previous prime is 40844483. The next prime is 40844567. The reversal of 40844519 is 91544804.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40844519 is a prime.

It is a super-2 number, since 2×40844519² = 3336549464682722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40844599) 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, 20422259 + 20422260.

It is an arithmetic number, because the mean of its divisors is an integer number (20422260).

Almost surely, 2^40844519 is an apocalyptic number.

40844519 is a deficient number, since it is larger than the sum of its proper divisors (1).

40844519 is an equidigital number, since it uses as much as digits as its factorization.

40844519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 40844519 is about 6390.9716788607. The cubic root of 40844519 is about 344.3852920004.

The spelling of 40844519 in words is "forty million, eight hundred forty-four thousand, five hundred nineteen".