33065988 has 12 divisors (see below), whose sum is σ = 77154000. Its totient is φ = 11021992.

The previous prime is 33065971. The next prime is 33065993. The reversal of 33065988 is 88956033.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×33065988² = 2186719124832288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1377738 + ... + 1377761.

It is an arithmetic number, because the mean of its divisors is an integer number (6429500).

Almost surely, 2^33065988 is an apocalyptic number.

It is an amenable number.

33065988 is an abundant number, since it is smaller than the sum of its proper divisors (44088012).

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

33065988 is a wasteful number, since it uses less digits than its factorization.

33065988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2755506 (or 2755504 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 33065988 is about 5750.3032963488. The cubic root of 33065988 is about 320.9670873952.

The spelling of 33065988 in words is "thirty-three million, sixty-five thousand, nine hundred eighty-eight".