1293347904 has 56 divisors (see below), whose sum is σ = 3429609600. Its totient is φ = 430155264.

The previous prime is 1293347903. The next prime is 1293347929. The reversal of 1293347904 is 4097433921.

It is not an unprimeable number, because it can be changed into a prime (1293347903) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 81622 + ... + 96170.

Almost surely, 2^1293347904 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 1293347904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1714804800).

1293347904 is an abundant number, since it is smaller than the sum of its proper divisors (2136261696).

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

1293347904 is a wasteful number, since it uses less digits than its factorization.

1293347904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15027 (or 15017 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 1293347904 is about 35963.1464696848. The cubic root of 1293347904 is about 1089.5281474782.

The spelling of 1293347904 in words is "one billion, two hundred ninety-three million, three hundred forty-seven thousand, nine hundred four".