40216619 has 2 divisors, whose sum is σ = 40216620. Its totient is φ = 40216618.

The previous prime is 40216541. The next prime is 40216621. The reversal of 40216619 is 91661204.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40216619 is a prime.

It is a super-2 number, since 2×40216619² = 3234752887582322, which contains 22 as substring.

Together with 40216621, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 40216591 and 40216600.

It is not a weakly prime, because it can be changed into another prime (40216219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20108309 + 20108310.

It is an arithmetic number, because the mean of its divisors is an integer number (20108310).

Almost surely, 2^40216619 is an apocalyptic number.

40216619 is a deficient number, since it is larger than the sum of its proper divisors (1).

40216619 is an equidigital number, since it uses as much as digits as its factorization.

40216619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 40216619 is about 6341.6574331952. The cubic root of 40216619 is about 342.6114337178.

The spelling of 40216619 in words is "forty million, two hundred sixteen thousand, six hundred nineteen".