4449984557 has 4 divisors (see below), whose sum is σ = 4454827680. Its totient is φ = 4445141436.

The previous prime is 4449984533. The next prime is 4449984577. The reversal of 4449984557 is 7554899444.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4449984557 - 2¹² = 4449980461 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4449984496 and 4449984505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4449984527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2420183 + ... + 2422020.

It is an arithmetic number, because the mean of its divisors is an integer number (1113706920).

Almost surely, 2^4449984557 is an apocalyptic number.

It is an amenable number.

4449984557 is a deficient number, since it is larger than the sum of its proper divisors (4843123).

4449984557 is an equidigital number, since it uses as much as digits as its factorization.

4449984557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4843122.

The product of its digits is 29030400, while the sum is 59.

The square root of 4449984557 is about 66708.2045703525. The cubic root of 4449984557 is about 1644.8242538508.

The spelling of 4449984557 in words is "four billion, four hundred forty-nine million, nine hundred eighty-four thousand, five hundred fifty-seven".