33222538 has 8 divisors (see below), whose sum is σ = 50048388. Its totient is φ = 16539744.

The previous prime is 33222523. The next prime is 33222571. The reversal of 33222538 is 83522233.

It can be written as a sum of positive squares in 2 ways, for example, as 31550689 + 1671849 = 5617^2 + 1293^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×33222538² = 2207474062322888, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35181 + ... + 36112.

Almost surely, 2^33222538 is an apocalyptic number.

33222538 is a deficient number, since it is larger than the sum of its proper divisors (16825850).

33222538 is a wasteful number, since it uses less digits than its factorization.

33222538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71528.

The product of its digits is 8640, while the sum is 28.

The square root of 33222538 is about 5763.8995480490. The cubic root of 33222538 is about 321.4728266778.

The spelling of 33222538 in words is "thirty-three million, two hundred twenty-two thousand, five hundred thirty-eight".