2442217957 has 2 divisors, whose sum is σ = 2442217958. Its totient is φ = 2442217956.

The previous prime is 2442217949. The next prime is 2442217963. The reversal of 2442217957 is 7597122442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2314956996 + 127260961 = 48114^2 + 11281^2 .

It is a cyclic number.

It is not a de Polignac number, because 2442217957 - 2³ = 2442217949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2442217997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1221108978 + 1221108979.

It is an arithmetic number, because the mean of its divisors is an integer number (1221108979).

Almost surely, 2^2442217957 is an apocalyptic number.

It is an amenable number.

2442217957 is a deficient number, since it is larger than the sum of its proper divisors (1).

2442217957 is an equidigital number, since it uses as much as digits as its factorization.

2442217957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282240, while the sum is 43.

The square root of 2442217957 is about 49418.8016548358. The cubic root of 2442217957 is about 1346.6708930841.

The spelling of 2442217957 in words is "two billion, four hundred forty-two million, two hundred seventeen thousand, nine hundred fifty-seven".