1242293378 has 16 divisors (see below), whose sum is σ = 2003253120. Its totient is φ = 575933616.

The previous prime is 1242293369. The next prime is 1242293443. The reversal of 1242293378 is 8733922421.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 346001 + ... + 349572.

It is an arithmetic number, because the mean of its divisors is an integer number (125203320).

Almost surely, 2^1242293378 is an apocalyptic number.

1242293378 is a deficient number, since it is larger than the sum of its proper divisors (760959742).

1242293378 is a wasteful number, since it uses less digits than its factorization.

1242293378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695641.

The product of its digits is 145152, while the sum is 41.

The square root of 1242293378 is about 35246.1824599488. The cubic root of 1242293378 is about 1074.9989913097.

The spelling of 1242293378 in words is "one billion, two hundred forty-two million, two hundred ninety-three thousand, three hundred seventy-eight".