143820432 has 120 divisors (see below), whose sum is σ = 467737920. Its totient is φ = 40400640.

The previous prime is 143820431. The next prime is 143820433. The reversal of 143820432 is 234028341.

It is an interprime number because it is at equal distance from previous prime (143820431) and next prime (143820433).

It is a junction number, because it is equal to n+sod(n) for n = 143820396 and 143820405.

It is not an unprimeable number, because it can be changed into a prime (143820431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60319 + ... + 62657.

It is an arithmetic number, because the mean of its divisors is an integer number (3897816).

Almost surely, 2^143820432 is an apocalyptic number.

143820432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143820432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233868960).

143820432 is an abundant number, since it is smaller than the sum of its proper divisors (323917488).

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

143820432 is a wasteful number, since it uses less digits than its factorization.

143820432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2421 (or 2412 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 143820432 is about 11992.5156660310. The cubic root of 143820432 is about 523.9303172494.

Adding to 143820432 its reverse (234028341), we get a palindrome (377848773).

The spelling of 143820432 in words is "one hundred forty-three million, eight hundred twenty thousand, four hundred thirty-two".