1004203220 has 12 divisors (see below), whose sum is σ = 2108826804. Its totient is φ = 401681280.

The previous prime is 1004203217. The next prime is 1004203223. The reversal of 1004203220 is 223024001.

It is an interprime number because it is at equal distance from previous prime (1004203217) and next prime (1004203223).

It can be written as a sum of positive squares in 2 ways, for example, as 738317584 + 265885636 = 27172^2 + 16306^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1004203195 and 1004203204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004203223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25105061 + ... + 25105100.

It is an arithmetic number, because the mean of its divisors is an integer number (175735567).

Almost surely, 2^1004203220 is an apocalyptic number.

1004203220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1004203220 is an abundant number, since it is smaller than the sum of its proper divisors (1104623584).

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

1004203220 is a wasteful number, since it uses less digits than its factorization.

1004203220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50210170 (or 50210168 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 1004203220 is about 31689.1656564195. The cubic root of 1004203220 is about 1001.3991148979.

Adding to 1004203220 its reverse (223024001), we get a palindrome (1227227221).

The spelling of 1004203220 in words is "one billion, four million, two hundred three thousand, two hundred twenty".