1296904448 has 72 divisors (see below), whose sum is σ = 2996340480. Its totient is φ = 548720640.

The previous prime is 1296904409. The next prime is 1296904457. The reversal of 1296904448 is 8444096921.

It is a super-2 number, since 2×1296904448² = 3363922294484369408, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 136988 + ... + 146148.

It is an arithmetic number, because the mean of its divisors is an integer number (41615840).

Almost surely, 2^1296904448 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 1296904448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1498170240).

1296904448 is an abundant number, since it is smaller than the sum of its proper divisors (1699436032).

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

1296904448 is an frugal number, since it uses more digits than its factorization.

1296904448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9263 (or 9249 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 47.

The square root of 1296904448 is about 36012.5595868997. The cubic root of 1296904448 is about 1090.5259218900.

The spelling of 1296904448 in words is "one billion, two hundred ninety-six million, nine hundred four thousand, four hundred forty-eight".