143838 has 24 divisors (see below), whose sum is σ = 319176. Its totient is φ = 46800.

The previous prime is 143833. The next prime is 143873. The reversal of 143838 is 838341.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1033 + ... + 1163.

It is an arithmetic number, because the mean of its divisors is an integer number (13299).

2¹⁴³⁸³⁸ is an apocalyptic number.

143838 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

143838 is an abundant number, since it is smaller than the sum of its proper divisors (175338).

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

143838 is a wasteful number, since it uses less digits than its factorization.

143838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200 (or 197 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 143838 is about 379.2598054105. The cubic root of 143838 is about 52.3951649483.

The spelling of 143838 in words is "one hundred forty-three thousand, eight hundred thirty-eight".