2449407749 has 2 divisors, whose sum is σ = 2449407750. Its totient is φ = 2449407748.

The previous prime is 2449407721. The next prime is 2449407757. The reversal of 2449407749 is 9477049442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1698264100 + 751143649 = 41210^2 + 27407^2 .

It is a cyclic number.

It is not a de Polignac number, because 2449407749 - 2²⁸ = 2180972293 is a prime.

It is a super-2 number, since 2×2449407749² = 11999196641722494002, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2449407697 and 2449407706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2449407799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1224703874 + 1224703875.

It is an arithmetic number, because the mean of its divisors is an integer number (1224703875).

Almost surely, 2^2449407749 is an apocalyptic number.

It is an amenable number.

2449407749 is a deficient number, since it is larger than the sum of its proper divisors (1).

2449407749 is an equidigital number, since it uses as much as digits as its factorization.

2449407749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2032128, while the sum is 50.

The square root of 2449407749 is about 49491.4916829145. The cubic root of 2449407749 is about 1347.9911134568.

The spelling of 2449407749 in words is "two billion, four hundred forty-nine million, four hundred seven thousand, seven hundred forty-nine".