240042220469 has 2 divisors, whose sum is σ = 240042220470. Its totient is φ = 240042220468.

The previous prime is 240042220373. The next prime is 240042220519. The reversal of 240042220469 is 964022240042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 233105496100 + 6936724369 = 482810^2 + 83287^2 .

It is a cyclic number.

It is not a de Polignac number, because 240042220469 - 2¹² = 240042216373 is a prime.

It is a super-2 number, since 2×240042220469² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240042228469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120021110234 + 120021110235.

It is an arithmetic number, because the mean of its divisors is an integer number (120021110235).

Almost surely, 2^240042220469 is an apocalyptic number.

It is an amenable number.

240042220469 is a deficient number, since it is larger than the sum of its proper divisors (1).

240042220469 is an equidigital number, since it uses as much as digits as its factorization.

240042220469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 35.

The spelling of 240042220469 in words is "two hundred forty billion, forty-two million, two hundred twenty thousand, four hundred sixty-nine".