4206440449 has 2 divisors, whose sum is σ = 4206440450. Its totient is φ = 4206440448.

The previous prime is 4206440443. The next prime is 4206440461. The reversal of 4206440449 is 9440446024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4206430449 + 10000 = 64857^2 + 100^2 .

It is a cyclic number.

It is not a de Polignac number, because 4206440449 - 2⁵ = 4206440417 is a prime.

It is not a weakly prime, because it can be changed into another prime (4206440443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2103220224 + 2103220225.

It is an arithmetic number, because the mean of its divisors is an integer number (2103220225).

Almost surely, 2^4206440449 is an apocalyptic number.

It is an amenable number.

4206440449 is a deficient number, since it is larger than the sum of its proper divisors (1).

4206440449 is an equidigital number, since it uses as much as digits as its factorization.

4206440449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 110592, while the sum is 37.

The square root of 4206440449 is about 64857.0770926350. The cubic root of 4206440449 is about 1614.2529236436.

The spelling of 4206440449 in words is "four billion, two hundred six million, four hundred forty thousand, four hundred forty-nine".