1293814648 has 64 divisors (see below), whose sum is σ = 2948970240. Its totient is φ = 519489024.

The previous prime is 1293814591. The next prime is 1293814681. The reversal of 1293814648 is 8464183921.

It is a junction number, because it is equal to n+sod(n) for n = 1293814598 and 1293814607.

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, 213111 + ... + 219097.

It is an arithmetic number, because the mean of its divisors is an integer number (46077660).

Almost surely, 2^1293814648 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 1293814648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1474485120).

1293814648 is an abundant number, since it is smaller than the sum of its proper divisors (1655155592).

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

1293814648 is a wasteful number, since it uses less digits than its factorization.

1293814648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6244 (or 6240 counting only the distinct ones).

The product of its digits is 331776, while the sum is 46.

The square root of 1293814648 is about 35969.6350829418. The cubic root of 1293814648 is about 1089.6591948588.

The spelling of 1293814648 in words is "one billion, two hundred ninety-three million, eight hundred fourteen thousand, six hundred forty-eight".