143800866 has 64 divisors (see below), whose sum is σ = 351964800. Its totient is φ = 43156800.

The previous prime is 143800837. The next prime is 143800883. The reversal of 143800866 is 668008341.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 143800866.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63636 + ... + 65856.

It is an arithmetic number, because the mean of its divisors is an integer number (5499450).

Almost surely, 2^143800866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143800866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175982400).

143800866 is an abundant number, since it is smaller than the sum of its proper divisors (208163934).

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

143800866 is a wasteful number, since it uses less digits than its factorization.

143800866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2352 (or 2346 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 143800866 is about 11991.6998795000. The cubic root of 143800866 is about 523.9065568667.

The spelling of 143800866 in words is "one hundred forty-three million, eight hundred thousand, eight hundred sixty-six".