20611433 has 8 divisors (see below), whose sum is σ = 21036288. Its totient is φ = 20191104.

The previous prime is 20611403. The next prime is 20611439. The reversal of 20611433 is 33411602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20611433 - 2⁶ = 20611369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20611439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8960 + ... + 11022.

It is an arithmetic number, because the mean of its divisors is an integer number (2629536).

Almost surely, 2^20611433 is an apocalyptic number.

It is an amenable number.

20611433 is a deficient number, since it is larger than the sum of its proper divisors (424855).

20611433 is a wasteful number, since it uses less digits than its factorization.

20611433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2263.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 20611433 is about 4539.9816078923. The cubic root of 20611433 is about 274.1801832237.

The spelling of 20611433 in words is "twenty million, six hundred eleven thousand, four hundred thirty-three".