20204030 has 64 divisors (see below), whose sum is σ = 47761920. Its totient is φ = 5961600.

The previous prime is 20204029. The next prime is 20204047. The reversal of 20204030 is 3040202.

It is a Harshad number since it is a multiple of its sum of digits (11).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13940 + ... + 15320.

It is an arithmetic number, because the mean of its divisors is an integer number (746280).

Almost surely, 2^20204030 is an apocalyptic number.

20204030 is an abundant number, since it is smaller than the sum of its proper divisors (27557890).

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

20204030 is a wasteful number, since it uses less digits than its factorization.

20204030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425.

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

The square root of 20204030 is about 4494.8893201057. The cubic root of 20204030 is about 272.3616782493.

Adding to 20204030 its reverse (3040202), we get a palindrome (23244232).

The spelling of 20204030 in words is "twenty million, two hundred four thousand, thirty".