1293378922 has 24 divisors (see below), whose sum is σ = 2149314048. Its totient is φ = 583256520.

The previous prime is 1293378833. The next prime is 1293378923. The reversal of 1293378922 is 2298733921.

It is not an unprimeable number, because it can be changed into a prime (1293378923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9693 + ... + 51775.

It is an arithmetic number, because the mean of its divisors is an integer number (89554752).

Almost surely, 2^1293378922 is an apocalyptic number.

1293378922 is a deficient number, since it is larger than the sum of its proper divisors (855935126).

1293378922 is a wasteful number, since it uses less digits than its factorization.

1293378922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42234 (or 42223 counting only the distinct ones).

The product of its digits is 326592, while the sum is 46.

The square root of 1293378922 is about 35963.5777141263. The cubic root of 1293378922 is about 1089.5368573579.

The spelling of 1293378922 in words is "one billion, two hundred ninety-three million, three hundred seventy-eight thousand, nine hundred twenty-two".