143286444 has 72 divisors (see below), whose sum is σ = 419662880. Its totient is φ = 40372992.

The previous prime is 143286439. The next prime is 143286463. The reversal of 143286444 is 444682341.

143286444 is a `hidden beast` number, since 1 + 4 + 3 + 2 + 8 + 644 + 4 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 143286399 and 143286408.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14502 + ... + 22290.

Almost surely, 2^143286444 is an apocalyptic number.

143286444 is a gapful number since it is divisible by the number (14) 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 143286444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209831440).

143286444 is an abundant number, since it is smaller than the sum of its proper divisors (276376436).

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

143286444 is a wasteful number, since it uses less digits than its factorization.

143286444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7879 (or 7874 counting only the distinct ones).

The product of its digits is 73728, while the sum is 36.

The square root of 143286444 is about 11970.2315767073. The cubic root of 143286444 is about 523.2810829502.

The spelling of 143286444 in words is "one hundred forty-three million, two hundred eighty-six thousand, four hundred forty-four".