1298481408 has 288 divisors, whose sum is σ = 4489605120. Its totient is φ = 362465280.

The previous prime is 1298481391. The next prime is 1298481421. The reversal of 1298481408 is 8041848921.

1298481408 is a `hidden beast` number, since 129 + 8 + 481 + 40 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2273763 + ... + 2274333.

Almost surely, 2^1298481408 is an apocalyptic number.

1298481408 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1298481408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2244802560).

1298481408 is an abundant number, since it is smaller than the sum of its proper divisors (3191123712).

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

1298481408 is an equidigital number, since it uses as much as digits as its factorization.

1298481408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650 (or 630 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 45.

The square root of 1298481408 is about 36034.4475190060. The cubic root of 1298481408 is about 1090.9677481187.

The spelling of 1298481408 in words is "one billion, two hundred ninety-eight million, four hundred eighty-one thousand, four hundred eight".