204030428 has 48 divisors (see below), whose sum is σ = 428198400. Its totient is φ = 83213760.

The previous prime is 204030419. The next prime is 204030433. The reversal of 204030428 is 824030402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55883 + ... + 59421.

It is an arithmetic number, because the mean of its divisors is an integer number (8920800).

Almost surely, 2^204030428 is an apocalyptic number.

204030428 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204030428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214099200).

204030428 is an abundant number, since it is smaller than the sum of its proper divisors (224167972).

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

204030428 is a wasteful number, since it uses less digits than its factorization.

204030428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3650 (or 3648 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 204030428 is about 14283.9220104284. The cubic root of 204030428 is about 588.7057986148.

The spelling of 204030428 in words is "two hundred four million, thirty thousand, four hundred twenty-eight".