1385134288 has 20 divisors (see below), whose sum is σ = 2692336608. Its totient is φ = 690337760.

The previous prime is 1385134273. The next prime is 1385134291. The reversal of 1385134288 is 8824315831.

It is a congruent number.

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, 134206 + ... + 144157.

Almost surely, 2^1385134288 is an apocalyptic number.

It is an amenable number.

1385134288 is a deficient number, since it is larger than the sum of its proper divisors (1307202320).

1385134288 is a wasteful number, since it uses less digits than its factorization.

1385134288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278682 (or 278676 counting only the distinct ones).

The product of its digits is 184320, while the sum is 43.

The square root of 1385134288 is about 37217.3922783421. The cubic root of 1385134288 is about 1114.7152947340.

The spelling of 1385134288 in words is "one billion, three hundred eighty-five million, one hundred thirty-four thousand, two hundred eighty-eight".