20533326 has 16 divisors (see below), whose sum is σ = 44800128. Its totient is φ = 6222200.

The previous prime is 20533321. The next prime is 20533327. The reversal of 20533326 is 62333502.

It is a junction number, because it is equal to n+sod(n) for n = 20533296 and 20533305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20533321) 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, 155490 + ... + 155621.

It is an arithmetic number, because the mean of its divisors is an integer number (2800008).

Almost surely, 2^20533326 is an apocalyptic number.

20533326 is an abundant number, since it is smaller than the sum of its proper divisors (24266802).

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

20533326 is a wasteful number, since it uses less digits than its factorization.

20533326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311127.

The product of its (nonzero) digits is 3240, while the sum is 24.

The square root of 20533326 is about 4531.3713156174. The cubic root of 20533326 is about 273.8334096658.

Adding to 20533326 its reverse (62333502), we get a palindrome (82866828).

The spelling of 20533326 in words is "twenty million, five hundred thirty-three thousand, three hundred twenty-six".