40544219 has 2 divisors, whose sum is σ = 40544220. Its totient is φ = 40544218.

The previous prime is 40544209. The next prime is 40544261. The reversal of 40544219 is 91244504.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40544219 is a prime.

It is a super-2 number, since 2×40544219² = 3287667388639922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40544191 and 40544200.

It is not a weakly prime, because it can be changed into another prime (40544209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20272109 + 20272110.

It is an arithmetic number, because the mean of its divisors is an integer number (20272110).

Almost surely, 2^40544219 is an apocalyptic number.

40544219 is a deficient number, since it is larger than the sum of its proper divisors (1).

40544219 is an equidigital number, since it uses as much as digits as its factorization.

40544219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 40544219 is about 6367.4342556480. The cubic root of 40544219 is about 343.5392103171.

The spelling of 40544219 in words is "forty million, five hundred forty-four thousand, two hundred nineteen".