20213302 has 16 divisors (see below), whose sum is σ = 32947200. Its totient is φ = 9265320.

The previous prime is 20213293. The next prime is 20213309. The reversal of 20213302 is 20331202.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20213309) 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 7 ways as a sum of consecutive naturals, for example, 7402 + ... + 9757.

It is an arithmetic number, because the mean of its divisors is an integer number (2059200).

Almost surely, 2^20213302 is an apocalyptic number.

20213302 is a deficient number, since it is larger than the sum of its proper divisors (12733898).

20213302 is a wasteful number, since it uses less digits than its factorization.

20213302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17211.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 20213302 is about 4495.9205953842. The cubic root of 20213302 is about 272.4033358010.

Adding to 20213302 its reverse (20331202), we get a palindrome (40544504).

The spelling of 20213302 in words is "twenty million, two hundred thirteen thousand, three hundred two".