33081433 has 16 divisors (see below), whose sum is σ = 42577920. Its totient is φ = 24944400.

The previous prime is 33081409. The next prime is 33081443. The reversal of 33081433 is 33418033.

It is a cyclic number.

It is not a de Polignac number, because 33081433 - 2⁵ = 33081401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 33081398 and 33081407.

It is not an unprimeable number, because it can be changed into a prime (33081403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4543 + ... + 9316.

It is an arithmetic number, because the mean of its divisors is an integer number (2661120).

Almost surely, 2^33081433 is an apocalyptic number.

It is an amenable number.

33081433 is a deficient number, since it is larger than the sum of its proper divisors (9496487).

33081433 is a wasteful number, since it uses less digits than its factorization.

33081433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13908.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 33081433 is about 5751.6461122013. The cubic root of 33081433 is about 321.0170537939.

Adding to 33081433 its reverse (33418033), we get a palindrome (66499466).

The spelling of 33081433 in words is "thirty-three million, eighty-one thousand, four hundred thirty-three".