1293984642 has 8 divisors (see below), whose sum is σ = 2587969296. Its totient is φ = 431328212.

The previous prime is 1293984619. The next prime is 1293984649. The reversal of 1293984642 is 2464893921.

It is a sphenic number, since it is the product of 3 distinct primes.

1293984642 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1293984591 and 1293984600.

It is not an unprimeable number, because it can be changed into a prime (1293984649) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 107832048 + ... + 107832059.

It is an arithmetic number, because the mean of its divisors is an integer number (323496162).

Almost surely, 2^1293984642 is an apocalyptic number.

1293984642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1293984642 is a wasteful number, since it uses less digits than its factorization.

1293984642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215664112.

The product of its digits is 746496, while the sum is 48.

The square root of 1293984642 is about 35971.9980262426. The cubic root of 1293984642 is about 1089.7069161233.

The spelling of 1293984642 in words is "one billion, two hundred ninety-three million, nine hundred eighty-four thousand, six hundred forty-two".