1293476240 has 80 divisors (see below), whose sum is σ = 3547868160. Its totient is φ = 429166080.

The previous prime is 1293476227. The next prime is 1293476251. The reversal of 1293476240 is 426743921.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 1293476194 and 1293476203.

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, 19895 + ... + 54614.

It is an arithmetic number, because the mean of its divisors is an integer number (44348352).

Almost surely, 2^1293476240 is an apocalyptic number.

1293476240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1293476240 is an abundant number, since it is smaller than the sum of its proper divisors (2254391920).

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

1293476240 is a wasteful number, since it uses less digits than its factorization.

1293476240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74560 (or 74554 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 1293476240 is about 35964.9306964437. The cubic root of 1293476240 is about 1089.5641834278.

The spelling of 1293476240 in words is "one billion, two hundred ninety-three million, four hundred seventy-six thousand, two hundred forty".