20352204 has 36 divisors (see below), whose sum is σ = 51911496. Its totient is φ = 6722688.

The previous prime is 20352203. The next prime is 20352259. The reversal of 20352204 is 40225302.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (20352203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1567 + ... + 6569.

It is an arithmetic number, because the mean of its divisors is an integer number (1441986).

Almost surely, 2^20352204 is an apocalyptic number.

It is an amenable number.

20352204 is an abundant number, since it is smaller than the sum of its proper divisors (31559292).

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

20352204 is a wasteful number, since it uses less digits than its factorization.

20352204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5126 (or 5121 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 20352204 is about 4511.3417072973. The cubic root of 20352204 is about 273.0258800889.

Adding to 20352204 its reverse (40225302), we get a palindrome (60577506).

The spelling of 20352204 in words is "twenty million, three hundred fifty-two thousand, two hundred four".