143873940 has 96 divisors (see below), whose sum is σ = 461986560. Its totient is φ = 32772096.

The previous prime is 143873881. The next prime is 143873963. The reversal of 143873940 is 49378341.

It is a super-2 number, since 2×143873940² = 41399421222247200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 213444 + ... + 214116.

It is an arithmetic number, because the mean of its divisors is an integer number (4812360).

Almost surely, 2^143873940 is an apocalyptic number.

143873940 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 143873940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230993280).

143873940 is an abundant number, since it is smaller than the sum of its proper divisors (318112620).

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

143873940 is a wasteful number, since it uses less digits than its factorization.

143873940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201 (or 1199 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 143873940 is about 11994.7463499651. The cubic root of 143873940 is about 523.9952848089.

The spelling of 143873940 in words is "one hundred forty-three million, eight hundred seventy-three thousand, nine hundred forty".