20136204 has 36 divisors (see below), whose sum is σ = 55528200. Its totient is φ = 6101760.

The previous prime is 20136197. The next prime is 20136217. The reversal of 20136204 is 40263102.

It is a happy number.

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

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25029 + ... + 25820.

It is an arithmetic number, because the mean of its divisors is an integer number (1542450).

Almost surely, 2^20136204 is an apocalyptic number.

It is an amenable number.

20136204 is an abundant number, since it is smaller than the sum of its proper divisors (35391996).

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

20136204 is a wasteful number, since it uses less digits than its factorization.

20136204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50870 (or 50865 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 20136204 is about 4487.3381864976. The cubic root of 20136204 is about 272.0565590285.

Adding to 20136204 its reverse (40263102), we get a palindrome (60399306).

The spelling of 20136204 in words is "twenty million, one hundred thirty-six thousand, two hundred four".