2240542817 has 2 divisors, whose sum is σ = 2240542818. Its totient is φ = 2240542816.

The previous prime is 2240542751. The next prime is 2240542823. The reversal of 2240542817 is 7182450422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2222556736 + 17986081 = 47144^2 + 4241^2 .

It is a cyclic number.

It is not a de Polignac number, because 2240542817 - 2⁸ = 2240542561 is a prime.

It is a super-2 number, since 2×2240542817² = 10040064229620590978, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2240542847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1120271408 + 1120271409.

It is an arithmetic number, because the mean of its divisors is an integer number (1120271409).

Almost surely, 2^2240542817 is an apocalyptic number.

It is an amenable number.

2240542817 is a deficient number, since it is larger than the sum of its proper divisors (1).

2240542817 is an equidigital number, since it uses as much as digits as its factorization.

2240542817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35840, while the sum is 35.

The square root of 2240542817 is about 47334.3724686406. The cubic root of 2240542817 is about 1308.5322054442.

The spelling of 2240542817 in words is "two billion, two hundred forty million, five hundred forty-two thousand, eight hundred seventeen".