1298844544 has 32 divisors (see below), whose sum is σ = 2598429600. Its totient is φ = 646689792.

The previous prime is 1298844527. The next prime is 1298844563. The reversal of 1298844544 is 4454488921.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9364 + ... + 51820.

It is an arithmetic number, because the mean of its divisors is an integer number (81200925).

Almost surely, 2^1298844544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1298844544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1299214800).

1298844544 is an abundant number, since it is smaller than the sum of its proper divisors (1299585056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1298844544 is an equidigital number, since it uses as much as digits as its factorization.

1298844544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42710 (or 42698 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 49.

The square root of 1298844544 is about 36039.4859008838. The cubic root of 1298844544 is about 1091.0694394063.

The spelling of 1298844544 in words is "one billion, two hundred ninety-eight million, eight hundred forty-four thousand, five hundred forty-four".