20235204 has 48 divisors (see below), whose sum is σ = 57234240. Its totient is φ = 6131520.

The previous prime is 20235197. The next prime is 20235211. The reversal of 20235204 is 40253202.

It is an interprime number because it is at equal distance from previous prime (20235197) and next prime (20235211).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7329 + ... + 9704.

It is an arithmetic number, because the mean of its divisors is an integer number (1192380).

Almost surely, 2^20235204 is an apocalyptic number.

It is an amenable number.

20235204 is an abundant number, since it is smaller than the sum of its proper divisors (36999036).

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

20235204 is a wasteful number, since it uses less digits than its factorization.

20235204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17057 (or 17049 counting only the distinct ones).

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

The square root of 20235204 is about 4498.3556995862. The cubic root of 20235204 is about 272.5016872774.

Adding to 20235204 its reverse (40253202), we get a palindrome (60488406).

It can be divided in two parts, 2023 and 5204, that added together give a palindrome (7227).

The spelling of 20235204 in words is "twenty million, two hundred thirty-five thousand, two hundred four".