33442222 has 12 divisors (see below), whose sum is σ = 55138608. Its totient is φ = 15200900.

The previous prime is 33442219. The next prime is 33442231. The reversal of 33442222 is 22224433.

It is a super-2 number, since 2×33442222² = 2236764424594568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 33442193 and 33442202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68854 + ... + 69337.

It is an arithmetic number, because the mean of its divisors is an integer number (4594884).

Almost surely, 2^33442222 is an apocalyptic number.

33442222 is a deficient number, since it is larger than the sum of its proper divisors (21696386).

33442222 is a wasteful number, since it uses less digits than its factorization.

33442222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138215 (or 138204 counting only the distinct ones).

The product of its digits is 2304, while the sum is 22.

The square root of 33442222 is about 5782.9250384213. The cubic root of 33442222 is about 322.1798501468.

Adding to 33442222 its reverse (22224433), we get a palindrome (55666655).

The spelling of 33442222 in words is "thirty-three million, four hundred forty-two thousand, two hundred twenty-two".