33872022 has 24 divisors (see below), whose sum is σ = 77252760. Its totient is φ = 10696320.

The previous prime is 33872011. The next prime is 33872023. The reversal of 33872022 is 22027833.

It is a super-2 number, since 2×33872022² = 2294627748736968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33872023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49179 + ... + 49862.

It is an arithmetic number, because the mean of its divisors is an integer number (3218865).

Almost surely, 2^33872022 is an apocalyptic number.

33872022 is an abundant number, since it is smaller than the sum of its proper divisors (43380738).

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

33872022 is a wasteful number, since it uses less digits than its factorization.

33872022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99068 (or 99065 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 33872022 is about 5819.9675256826. The cubic root of 33872022 is about 323.5541994205.

Adding to 33872022 its reverse (22027833), we get a palindrome (55899855).

The spelling of 33872022 in words is "thirty-three million, eight hundred seventy-two thousand, twenty-two".