33133992 has 32 divisors (see below), whose sum is σ = 83090880. Its totient is φ = 11010560.

The previous prime is 33133949. The next prime is 33133993. The reversal of 33133992 is 29933133.

It is a happy number.

It is a super-2 number, since 2×33133992² = 2195722851712128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33133993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6517 + ... + 10427.

It is an arithmetic number, because the mean of its divisors is an integer number (2596590).

Almost surely, 2^33133992 is an apocalyptic number.

It is an amenable number.

33133992 is an abundant number, since it is smaller than the sum of its proper divisors (49956888).

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

33133992 is a wasteful number, since it uses less digits than its factorization.

33133992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4273 (or 4269 counting only the distinct ones).

The product of its digits is 13122, while the sum is 33.

The square root of 33133992 is about 5756.2133386455. The cubic root of 33133992 is about 321.1869719446.

The spelling of 33133992 in words is "thirty-three million, one hundred thirty-three thousand, nine hundred ninety-two".