33442212 has 24 divisors (see below), whose sum is σ = 78472800. Its totient is φ = 11084416.

The previous prime is 33442193. The next prime is 33442217. The reversal of 33442212 is 21224433.

It is a super-2 number, since 2×33442212² = 2236763086905888, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (33442217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5637 + ... + 9932.

It is an arithmetic number, because the mean of its divisors is an integer number (3269700).

Almost surely, 2^33442212 is an apocalyptic number.

It is an amenable number.

33442212 is an abundant number, since it is smaller than the sum of its proper divisors (45030588).

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

33442212 is a wasteful number, since it uses less digits than its factorization.

33442212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15755 (or 15753 counting only the distinct ones).

The product of its digits is 1152, while the sum is 21.

The square root of 33442212 is about 5782.9241738069. The cubic root of 33442212 is about 322.1798180338.

Adding to 33442212 its reverse (21224433), we get a palindrome (54666645).

The spelling of 33442212 in words is "thirty-three million, four hundred forty-two thousand, two hundred twelve".