40087219 has 2 divisors, whose sum is σ = 40087220. Its totient is φ = 40087218.

The previous prime is 40087129. The next prime is 40087237. The reversal of 40087219 is 91278004.

Together with previous prime (40087129) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40087219 - 2¹³ = 40079027 is a prime.

It is a super-2 number, since 2×40087219² = 3213970254307922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (41087219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20043609 + 20043610.

It is an arithmetic number, because the mean of its divisors is an integer number (20043610).

Almost surely, 2^40087219 is an apocalyptic number.

40087219 is a deficient number, since it is larger than the sum of its proper divisors (1).

40087219 is an equidigital number, since it uses as much as digits as its factorization.

40087219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 40087219 is about 6331.4468330706. The cubic root of 40087219 is about 342.2435795400.

The spelling of 40087219 in words is "forty million, eighty-seven thousand, two hundred nineteen".