1443834138 has 16 divisors (see below), whose sum is σ = 2907050400. Its totient is φ = 478047696.

The previous prime is 1443834103. The next prime is 1443834167. The reversal of 1443834138 is 8314383441.

It is a junction number, because it is equal to n+sod(n) for n = 1443834096 and 1443834105.

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, 806620 + ... + 808407.

It is an arithmetic number, because the mean of its divisors is an integer number (181690650).

Almost surely, 2^1443834138 is an apocalyptic number.

1443834138 is an abundant number, since it is smaller than the sum of its proper divisors (1463216262).

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

1443834138 is a wasteful number, since it uses less digits than its factorization.

1443834138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615181.

The product of its digits is 110592, while the sum is 39.

The square root of 1443834138 is about 37997.8175425905. The cubic root of 1443834138 is about 1130.2445858950.

The spelling of 1443834138 in words is "one billion, four hundred forty-three million, eight hundred thirty-four thousand, one hundred thirty-eight".