143233920 has 224 divisors, whose sum is σ = 515065320. Its totient is φ = 38071296.

The previous prime is 143233907. The next prime is 143233921. The reversal of 143233920 is 29332341.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143233921) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 466407 + ... + 466713.

Almost surely, 2^143233920 is an apocalyptic number.

143233920 is a gapful number since it is divisible by the number (10) 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 143233920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257532660).

143233920 is an abundant number, since it is smaller than the sum of its proper divisors (371831400).

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

143233920 is an frugal number, since it uses more digits than its factorization.

143233920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344 (or 317 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 143233920 is about 11968.0374330965. The cubic root of 143233920 is about 523.2171360434.

The spelling of 143233920 in words is "one hundred forty-three million, two hundred thirty-three thousand, nine hundred twenty".