143784072 has 96 divisors (see below), whose sum is σ = 414960000. Its totient is φ = 46609344.

The previous prime is 143784061. The next prime is 143784097. The reversal of 143784072 is 270487341.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70929 + ... + 72927.

It is an arithmetic number, because the mean of its divisors is an integer number (4322500).

Almost surely, 2^143784072 is an apocalyptic number.

143784072 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 143784072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207480000).

143784072 is an abundant number, since it is smaller than the sum of its proper divisors (271175928).

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

143784072 is a wasteful number, since it uses less digits than its factorization.

143784072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2057 (or 2041 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 143784072 is about 11990.9996247185. Note that the first 3 decimals coincide. The cubic root of 143784072 is about 523.8861610015.

The spelling of 143784072 in words is "one hundred forty-three million, seven hundred eighty-four thousand, seventy-two".