20133246 has 32 divisors (see below), whose sum is σ = 46368000. Its totient is φ = 5708736.

The previous prime is 20133199. The next prime is 20133247. The reversal of 20133246 is 64233102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20133247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4005 + ... + 7503.

It is an arithmetic number, because the mean of its divisors is an integer number (1449000).

Almost surely, 2^20133246 is an apocalyptic number.

20133246 is an abundant number, since it is smaller than the sum of its proper divisors (26234754).

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

20133246 is a wasteful number, since it uses less digits than its factorization.

20133246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3648.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 20133246 is about 4487.0085803350. The cubic root of 20133246 is about 272.0432367110.

Adding to 20133246 its reverse (64233102), we get a palindrome (84366348).

The spelling of 20133246 in words is "twenty million, one hundred thirty-three thousand, two hundred forty-six".