143800816 has 40 divisors (see below), whose sum is σ = 302758400. Its totient is φ = 65914560.

The previous prime is 143800801. The next prime is 143800823. The reversal of 143800816 is 618008341.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1795 + ... + 17053.

It is an arithmetic number, because the mean of its divisors is an integer number (7568960).

Almost surely, 2^143800816 is an apocalyptic number.

143800816 is a gapful number since it is divisible by the number (16) 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 143800816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151379200).

143800816 is an abundant number, since it is smaller than the sum of its proper divisors (158957584).

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

143800816 is a wasteful number, since it uses less digits than its factorization.

143800816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15317 (or 15311 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 143800816 is about 11991.6977947245. The cubic root of 143800816 is about 523.9064961454.

The spelling of 143800816 in words is "one hundred forty-three million, eight hundred thousand, eight hundred sixteen".