33407222 has 4 divisors (see below), whose sum is σ = 50110836. Its totient is φ = 16703610.

The previous prime is 33407221. The next prime is 33407239. The reversal of 33407222 is 22270433.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22270433 = 47 ⋅473839.

It is a super-2 number, since 2×33407222² = 2232084963514568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33407221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8351804 + ... + 8351807.

It is an arithmetic number, because the mean of its divisors is an integer number (12527709).

Almost surely, 2^33407222 is an apocalyptic number.

33407222 is a deficient number, since it is larger than the sum of its proper divisors (16703614).

33407222 is a wasteful number, since it uses less digits than its factorization.

33407222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16703613.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 33407222 is about 5779.8980959875. The cubic root of 33407222 is about 322.0674151249.

Adding to 33407222 its reverse (22270433), we get a palindrome (55677655).

The spelling of 33407222 in words is "thirty-three million, four hundred seven thousand, two hundred twenty-two".