143838720 has 160 divisors (see below), whose sum is σ = 511172640. Its totient is φ = 38338560.

The previous prime is 143838719. The next prime is 143838731. The reversal of 143838720 is 27838341.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68080 + ... + 70160.

It is an arithmetic number, because the mean of its divisors is an integer number (3194829).

Almost surely, 2^143838720 is an apocalyptic number.

143838720 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 143838720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255586320).

143838720 is an abundant number, since it is smaller than the sum of its proper divisors (367333920).

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

143838720 is an equidigital number, since it uses as much as digits as its factorization.

143838720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2113 (or 2091 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 143838720 is about 11993.2781173456. The cubic root of 143838720 is about 523.9525237176.

The spelling of 143838720 in words is "one hundred forty-three million, eight hundred thirty-eight thousand, seven hundred twenty".