143968240 has 120 divisors (see below), whose sum is σ = 383725440. Its totient is φ = 49926144.

The previous prime is 143968219. The next prime is 143968243. The reversal of 143968240 is 42869341.

It is a self number, because there is not a number n which added to its sum of digits gives 143968240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143968243) 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 23 ways as a sum of consecutive naturals, for example, 300321 + ... + 300799.

It is an arithmetic number, because the mean of its divisors is an integer number (3197712).

Almost surely, 2^143968240 is an apocalyptic number.

143968240 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 143968240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191862720).

143968240 is an abundant number, since it is smaller than the sum of its proper divisors (239757200).

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

143968240 is a wasteful number, since it uses less digits than its factorization.

143968240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539 (or 516 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 143968240 is about 11998.6765936915. The cubic root of 143968240 is about 524.1097414035.

The spelling of 143968240 in words is "one hundred forty-three million, nine hundred sixty-eight thousand, two hundred forty".