240020219 has 2 divisors, whose sum is σ = 240020220. Its totient is φ = 240020218.

The previous prime is 240020129. The next prime is 240020227. The reversal of 240020219 is 912020042.

Together with previous prime (240020129) 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 240020219 - 2¹² = 240016123 is a prime.

It is a super-2 number, since 2×240020219² = 115219411057615922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 240020219.

It is not a weakly prime, because it can be changed into another prime (240020239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120010109 + 120010110.

It is an arithmetic number, because the mean of its divisors is an integer number (120010110).

Almost surely, 2^240020219 is an apocalyptic number.

240020219 is a deficient number, since it is larger than the sum of its proper divisors (1).

240020219 is an equidigital number, since it uses as much as digits as its factorization.

240020219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 240020219 is about 15492.5859365052. The cubic root of 240020219 is about 621.4639521268.

The spelling of 240020219 in words is "two hundred forty million, twenty thousand, two hundred nineteen".