1298404224 has 192 divisors, whose sum is σ = 4054377600. Its totient is φ = 396472320.

The previous prime is 1298404201. The next prime is 1298404241. The reversal of 1298404224 is 4224048921.

1298404224 is a `hidden beast` number, since 1 + 29 + 8 + 404 + 224 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2710417 + ... + 2710895.

It is an arithmetic number, because the mean of its divisors is an integer number (21116550).

Almost surely, 2^1298404224 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 1298404224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2027188800).

1298404224 is an abundant number, since it is smaller than the sum of its proper divisors (2755973376).

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

1298404224 is a wasteful number, since it uses less digits than its factorization.

1298404224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693 (or 678 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 1298404224 is about 36033.3765278804. The cubic root of 1298404224 is about 1090.9461313484.

The spelling of 1298404224 in words is "one billion, two hundred ninety-eight million, four hundred four thousand, two hundred twenty-four".