33142216 has 16 divisors (see below), whose sum is σ = 62375040. Its totient is φ = 16508880.

The previous prime is 33142211. The next prime is 33142267. The reversal of 33142216 is 61224133.

It is not an unprimeable number, because it can be changed into a prime (33142211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5476 + ... + 9811.

It is an arithmetic number, because the mean of its divisors is an integer number (3898440).

Almost surely, 2^33142216 is an apocalyptic number.

It is an amenable number.

33142216 is a deficient number, since it is larger than the sum of its proper divisors (29232824).

33142216 is a wasteful number, since it uses less digits than its factorization.

33142216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15564 (or 15560 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

The square root of 33142216 is about 5756.9276528371. The cubic root of 33142216 is about 321.2135430778.

Adding to 33142216 its reverse (61224133), we get a palindrome (94366349).

The spelling of 33142216 in words is "thirty-three million, one hundred forty-two thousand, two hundred sixteen".