20202320 has 40 divisors (see below), whose sum is σ = 49446240. Its totient is φ = 7655040.

The previous prime is 20202313. The next prime is 20202353. The reversal of 20202320 is 2320202.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5126 + ... + 8165.

It is an arithmetic number, because the mean of its divisors is an integer number (1236156).

Almost surely, 2^20202320 is an apocalyptic number.

20202320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20202320 is an abundant number, since it is smaller than the sum of its proper divisors (29243920).

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

20202320 is a wasteful number, since it uses less digits than its factorization.

20202320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13323 (or 13317 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 20202320 is about 4494.6991000511. The cubic root of 20202320 is about 272.3539941122.

Adding to 20202320 its reverse (2320202), we get a palindrome (22522522).

The spelling of 20202320 in words is "twenty million, two hundred two thousand, three hundred twenty".