242405719 has 2 divisors, whose sum is σ = 242405720. Its totient is φ = 242405718.

The previous prime is 242405701. The next prime is 242405767. The reversal of 242405719 is 917504242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242405719 - 2⁵ = 242405687 is a prime.

It is a super-2 number, since 2×242405719² = 117521065207813922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242405419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121202859 + 121202860.

It is an arithmetic number, because the mean of its divisors is an integer number (121202860).

Almost surely, 2^242405719 is an apocalyptic number.

242405719 is a deficient number, since it is larger than the sum of its proper divisors (1).

242405719 is an equidigital number, since it uses as much as digits as its factorization.

242405719 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 242405719 is about 15569.3840276358. The cubic root of 242405719 is about 623.5160261834.

The spelling of 242405719 in words is "two hundred forty-two million, four hundred five thousand, seven hundred nineteen".