2449942057 has 2 divisors, whose sum is σ = 2449942058. Its totient is φ = 2449942056.

The previous prime is 2449942051. The next prime is 2449942067. The reversal of 2449942057 is 7502499442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1954612521 + 495329536 = 44211^2 + 22256^2 .

It is a cyclic number.

It is not a de Polignac number, because 2449942057 - 2³ = 2449942049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2449941998 and 2449942016.

It is not a weakly prime, because it can be changed into another prime (2449942051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1224971028 + 1224971029.

It is an arithmetic number, because the mean of its divisors is an integer number (1224971029).

Almost surely, 2^2449942057 is an apocalyptic number.

It is an amenable number.

2449942057 is a deficient number, since it is larger than the sum of its proper divisors (1).

2449942057 is an equidigital number, since it uses as much as digits as its factorization.

2449942057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 46.

The square root of 2449942057 is about 49496.8893669087. The cubic root of 2449942057 is about 1348.0891221927.

The spelling of 2449942057 in words is "two billion, four hundred forty-nine million, nine hundred forty-two thousand, fifty-seven".