1298360544 has 48 divisors (see below), whose sum is σ = 3670368912. Its totient is φ = 399495168.

The previous prime is 1298360543. The next prime is 1298360561. The reversal of 1298360544 is 4450638921.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 1298360496 and 1298360505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298360543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 518929 + ... + 521424.

It is an arithmetic number, because the mean of its divisors is an integer number (76466019).

Almost surely, 2^1298360544 is an apocalyptic number.

It is an amenable number.

1298360544 is an abundant number, since it is smaller than the sum of its proper divisors (2372008368).

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

1298360544 is a wasteful number, since it uses less digits than its factorization.

1298360544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040379 (or 1040371 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 1298360544 is about 36032.7704180514. The cubic root of 1298360544 is about 1090.9338975975.

The spelling of 1298360544 in words is "one billion, two hundred ninety-eight million, three hundred sixty thousand, five hundred forty-four".