33222040 has 16 divisors (see below), whose sum is σ = 74749680. Its totient is φ = 13288800.

The previous prime is 33221999. The next prime is 33222047. The reversal of 33222040 is 4022233.

It is a super-2 number, since 2×33222040² = 2207407883523200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33222047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 415236 + ... + 415315.

It is an arithmetic number, because the mean of its divisors is an integer number (4671855).

Almost surely, 2^33222040 is an apocalyptic number.

It is an amenable number.

33222040 is an abundant number, since it is smaller than the sum of its proper divisors (41527640).

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

33222040 is a wasteful number, since it uses less digits than its factorization.

33222040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830562 (or 830558 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 33222040 is about 5763.8563479670. The cubic root of 33222040 is about 321.4712203961.

Adding to 33222040 its reverse (4022233), we get a palindrome (37244273).

The spelling of 33222040 in words is "thirty-three million, two hundred twenty-two thousand, forty".