143022432 has 192 divisors, whose sum is σ = 457228800. Its totient is φ = 38277120.

The previous prime is 143022419. The next prime is 143022433. The reversal of 143022432 is 234220341.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 143022399 and 143022408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143022433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 798919 + ... + 799097.

It is an arithmetic number, because the mean of its divisors is an integer number (2381400).

Almost surely, 2^143022432 is an apocalyptic number.

143022432 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 143022432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228614400).

143022432 is an abundant number, since it is smaller than the sum of its proper divisors (314206368).

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

143022432 is a wasteful number, since it uses less digits than its factorization.

143022432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 261 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 143022432 is about 11959.1986353601. The cubic root of 143022432 is about 522.9594953685.

Adding to 143022432 its reverse (234220341), we get a palindrome (377242773).

The spelling of 143022432 in words is "one hundred forty-three million, twenty-two thousand, four hundred thirty-two".