1297456608 has 96 divisors (see below), whose sum is σ = 3950601984. Its totient is φ = 365156352.

The previous prime is 1297456561. The next prime is 1297456637. The reversal of 1297456608 is 8066547921.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30616 + ... + 59432.

It is an arithmetic number, because the mean of its divisors is an integer number (41152104).

Almost surely, 2^1297456608 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 1297456608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1975300992).

1297456608 is an abundant number, since it is smaller than the sum of its proper divisors (2653145376).

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

1297456608 is a wasteful number, since it uses less digits than its factorization.

1297456608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28904 (or 28896 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 1297456608 is about 36020.2249854162. The cubic root of 1297456608 is about 1090.6806645568.

The spelling of 1297456608 in words is "one billion, two hundred ninety-seven million, four hundred fifty-six thousand, six hundred eight".