1020000204 has 72 divisors (see below), whose sum is σ = 2788164288. Its totient is φ = 313182720.

The previous prime is 1020000181. The next prime is 1020000217. The reversal of 1020000204 is 4020000201.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11034 + ... + 46494.

It is an arithmetic number, because the mean of its divisors is an integer number (38724504).

Almost surely, 2^1020000204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020000204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1394082144).

1020000204 is an abundant number, since it is smaller than the sum of its proper divisors (1768164084).

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

1020000204 is a wasteful number, since it uses less digits than its factorization.

1020000204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35535 (or 35530 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 1020000204 is about 31937.4420390863. The cubic root of 1020000204 is about 1006.6227766683.

Adding to 1020000204 its reverse (4020000201), we get a palindrome (5040000405).

The spelling of 1020000204 in words is "one billion, twenty million, two hundred four", and thus it is an aban number.