1298648064 has 176 divisors, whose sum is σ = 3994695936. Its totient is φ = 367411200.

The previous prime is 1298648047. The next prime is 1298648111. The reversal of 1298648064 is 4608468921.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2816794 + ... + 2817254.

It is an arithmetic number, because the mean of its divisors is an integer number (22697136).

Almost surely, 2^1298648064 is an apocalyptic number.

1298648064 is a gapful number since it is divisible by the number (14) 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 1298648064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1997347968).

1298648064 is an abundant number, since it is smaller than the sum of its proper divisors (2696047872).

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

1298648064 is a wasteful number, since it uses less digits than its factorization.

1298648064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622 (or 604 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 48.

The square root of 1298648064 is about 36036.7598987478. The cubic root of 1298648064 is about 1091.0144202138.

The spelling of 1298648064 in words is "one billion, two hundred ninety-eight million, six hundred forty-eight thousand, sixty-four".