1298541984 has 24 divisors (see below), whose sum is σ = 3408672960. Its totient is φ = 432847296.

The previous prime is 1298541983. The next prime is 1298541989. The reversal of 1298541984 is 4891458921.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×1298541984² = 3372422568421312512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1298541983) 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, 6763144 + ... + 6763335.

It is an arithmetic number, because the mean of its divisors is an integer number (142028040).

Almost surely, 2^1298541984 is an apocalyptic number.

It is an amenable number.

1298541984 is an abundant number, since it is smaller than the sum of its proper divisors (2110130976).

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

1298541984 is a wasteful number, since it uses less digits than its factorization.

1298541984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13526492 (or 13526484 counting only the distinct ones).

The product of its digits is 829440, while the sum is 51.

The square root of 1298541984 is about 36035.2880382549. The cubic root of 1298541984 is about 1090.9847129194.

The spelling of 1298541984 in words is "one billion, two hundred ninety-eight million, five hundred forty-one thousand, nine hundred eighty-four".