33199938 has 12 divisors (see below), whose sum is σ = 71933238. Its totient is φ = 11066640.

The previous prime is 33199931. The next prime is 33199951. The reversal of 33199938 is 83999133.

It can be written as a sum of positive squares in only one way, i.e., 21930489 + 11269449 = 4683^2 + 3357^2 .

It is a super-2 number, since 2×33199938² = 2204471766407688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33199893 and 33199902.

It is not an unprimeable number, because it can be changed into a prime (33199931) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 922203 + ... + 922238.

Almost surely, 2^33199938 is an apocalyptic number.

33199938 is an abundant number, since it is smaller than the sum of its proper divisors (38733300).

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

33199938 is a wasteful number, since it uses less digits than its factorization.

33199938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1844449 (or 1844446 counting only the distinct ones).

The product of its digits is 157464, while the sum is 45.

The square root of 33199938 is about 5761.9387362241. The cubic root of 33199938 is about 321.3999149902.

The spelling of 33199938 in words is "thirty-three million, one hundred ninety-nine thousand, nine hundred thirty-eight".