1383291128 has 32 divisors (see below), whose sum is σ = 2659925520. Its totient is φ = 674016000.

The previous prime is 1383291121. The next prime is 1383291193. The reversal of 1383291128 is 8211923831.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1383291091 and 1383291100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1383291121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 385583 + ... + 389153.

Almost surely, 2^1383291128 is an apocalyptic number.

It is an amenable number.

1383291128 is a deficient number, since it is larger than the sum of its proper divisors (1276634392).

1383291128 is a wasteful number, since it uses less digits than its factorization.

1383291128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4799 (or 4795 counting only the distinct ones).

The product of its digits is 20736, while the sum is 38.

The square root of 1383291128 is about 37192.6219565118. The cubic root of 1383291128 is about 1114.2206349581.

The spelling of 1383291128 in words is "one billion, three hundred eighty-three million, two hundred ninety-one thousand, one hundred twenty-eight".