20133210 has 32 divisors (see below), whose sum is σ = 48755520. Its totient is φ = 5320448.

The previous prime is 20133199. The next prime is 20133247. The reversal of 20133210 is 1233102.

It is a happy number.

It is a super-2 number, since 2×20133210² = 810692289808200, which contains 22 as substring.

It is a plaindrome in base 16.

It is an unprimeable number.

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, 421 + ... + 6359.

It is an arithmetic number, because the mean of its divisors is an integer number (1523610).

Almost surely, 2^20133210 is an apocalyptic number.

20133210 is an abundant number, since it is smaller than the sum of its proper divisors (28622310).

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

20133210 is a wasteful number, since it uses less digits than its factorization.

20133210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6062.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 20133210 is about 4487.0045687519. The cubic root of 20133210 is about 272.0430745652.

Adding to 20133210 its reverse (1233102), we get a palindrome (21366312).

It can be divided in two parts, 201 and 33210, that added together give a triangular number (33411 = T₂₅₈).

The spelling of 20133210 in words is "twenty million, one hundred thirty-three thousand, two hundred ten".