4400400449 has 2 divisors, whose sum is σ = 4400400450. Its totient is φ = 4400400448.

The previous prime is 4400400439. The next prime is 4400400467. The reversal of 4400400449 is 9440040044.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3560270224 + 840130225 = 59668^2 + 28985^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4400400449 is a prime.

It is a super-2 number, since 2×4400400449² = 38727048223118803202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4400400439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2200200224 + 2200200225.

It is an arithmetic number, because the mean of its divisors is an integer number (2200200225).

Almost surely, 2^4400400449 is an apocalyptic number.

It is an amenable number.

4400400449 is a deficient number, since it is larger than the sum of its proper divisors (1).

4400400449 is an equidigital number, since it uses as much as digits as its factorization.

4400400449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 4400400449 is about 66335.5142363425. The cubic root of 4400400449 is about 1638.6922512665.

The spelling of 4400400449 in words is "four billion, four hundred million, four hundred thousand, four hundred forty-nine".