1004202020 has 12 divisors (see below), whose sum is σ = 2108824284. Its totient is φ = 401680800.

The previous prime is 1004201999. The next prime is 1004202029. The reversal of 1004202020 is 202024001.

It can be written as a sum of positive squares in 2 ways, for example, as 183494116 + 820707904 = 13546^2 + 28648^2 .

It is a super-3 number, since 3×1004202020³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1004201992 and 1004202010.

It is not an unprimeable number, because it can be changed into a prime (1004202029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25105031 + ... + 25105070.

It is an arithmetic number, because the mean of its divisors is an integer number (175735357).

Almost surely, 2^1004202020 is an apocalyptic number.

1004202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1004202020 is an abundant number, since it is smaller than the sum of its proper divisors (1104622264).

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

1004202020 is a wasteful number, since it uses less digits than its factorization.

1004202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50210110 (or 50210108 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 1004202020 is about 31689.1467224979. The cubic root of 1004202020 is about 1001.3987160147.

Adding to 1004202020 its reverse (202024001), we get a palindrome (1206226021).

The spelling of 1004202020 in words is "one billion, four million, two hundred two thousand, twenty".