2449949321 has 2 divisors, whose sum is σ = 2449949322. Its totient is φ = 2449949320.

The previous prime is 2449949311. The next prime is 2449949347. The reversal of 2449949321 is 1239499442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2202988096 + 246961225 = 46936^2 + 15715^2 .

It is a cyclic number.

It is not a de Polignac number, because 2449949321 - 2¹⁰ = 2449948297 is a prime.

It is a super-2 number, since 2×2449949321² = 12004503350936722082, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2449949311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1224974660 + 1224974661.

It is an arithmetic number, because the mean of its divisors is an integer number (1224974661).

Almost surely, 2^2449949321 is an apocalyptic number.

It is an amenable number.

2449949321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2449949321 is an equidigital number, since it uses as much as digits as its factorization.

2449949321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 559872, while the sum is 47.

The square root of 2449949321 is about 49496.9627452029. The cubic root of 2449949321 is about 1348.0904545385.

The spelling of 2449949321 in words is "two billion, four hundred forty-nine million, nine hundred forty-nine thousand, three hundred twenty-one".