1383470838 has 48 divisors (see below), whose sum is σ = 3157180416. Its totient is φ = 436970160.

The previous prime is 1383470827. The next prime is 1383470843. The reversal of 1383470838 is 8380743831.

It is a junction number, because it is equal to n+sod(n) for n = 1383470793 and 1383470802.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28683 + ... + 59913.

It is an arithmetic number, because the mean of its divisors is an integer number (65774592).

Almost surely, 2^1383470838 is an apocalyptic number.

1383470838 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1383470838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1578590208).

1383470838 is an abundant number, since it is smaller than the sum of its proper divisors (1773709578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1383470838 is a wasteful number, since it uses less digits than its factorization.

1383470838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31369 (or 31366 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 1383470838 is about 37195.0378142031. The cubic root of 1383470838 is about 1114.2688841217.

The spelling of 1383470838 in words is "one billion, three hundred eighty-three million, four hundred seventy thousand, eight hundred thirty-eight".