33143382 has 12 divisors (see below), whose sum is σ = 71810700. Its totient is φ = 11047788.

The previous prime is 33143381. The next prime is 33143401. The reversal of 33143382 is 28334133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33143381) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 920632 + ... + 920667.

It is an arithmetic number, because the mean of its divisors is an integer number (5984225).

Almost surely, 2^33143382 is an apocalyptic number.

33143382 is an abundant number, since it is smaller than the sum of its proper divisors (38667318).

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

33143382 is a wasteful number, since it uses less digits than its factorization.

33143382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1841307 (or 1841304 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 33143382 is about 5757.0289212405. The cubic root of 33143382 is about 321.2173099814.

Subtracting from 33143382 its reverse (28334133), we obtain a square (4809249 = 2193²).

The spelling of 33143382 in words is "thirty-three million, one hundred forty-three thousand, three hundred eighty-two".