143381448 has 384 divisors, whose sum is σ = 525312000. Its totient is φ = 35925120.

The previous prime is 143381431. The next prime is 143381449. The reversal of 143381448 is 844183341.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143381449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4625193 + ... + 4625223.

It is an arithmetic number, because the mean of its divisors is an integer number (1368000).

Almost surely, 2^143381448 is an apocalyptic number.

143381448 is a gapful number since it is divisible by the number (18) 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 143381448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262656000).

143381448 is an abundant number, since it is smaller than the sum of its proper divisors (381930552).

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

143381448 is a wasteful number, since it uses less digits than its factorization.

143381448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102 (or 85 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 143381448 is about 11974.1992634163. The cubic root of 143381448 is about 523.3967087119.

The spelling of 143381448 in words is "one hundred forty-three million, three hundred eighty-one thousand, four hundred forty-eight".