1273385384 has 16 divisors (see below), whose sum is σ = 2423234400. Its totient is φ = 627189552.

The previous prime is 1273385341. The next prime is 1273385401. The reversal of 1273385384 is 4835833721.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1187324 + ... + 1188395.

It is an arithmetic number, because the mean of its divisors is an integer number (151452150).

Almost surely, 2^1273385384 is an apocalyptic number.

It is an amenable number.

1273385384 is a deficient number, since it is larger than the sum of its proper divisors (1149849016).

1273385384 is a wasteful number, since it uses less digits than its factorization.

1273385384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2375792 (or 2375788 counting only the distinct ones).

The product of its digits is 483840, while the sum is 44.

The square root of 1273385384 is about 35684.5258340362. The cubic root of 1273385384 is about 1083.8935208565.

The spelling of 1273385384 in words is "one billion, two hundred seventy-three million, three hundred eighty-five thousand, three hundred eighty-four".