1820038204 has 12 divisors (see below), whose sum is σ = 3185483728. Its totient is φ = 909900000.

The previous prime is 1820038189. The next prime is 1820038219. The reversal of 1820038204 is 4028300281.

It is an interprime number because it is at equal distance from previous prime (1820038189) and next prime (1820038219).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10729 + ... + 61279.

Almost surely, 2^1820038204 is an apocalyptic number.

It is an amenable number.

1820038204 is a deficient number, since it is larger than the sum of its proper divisors (1365445524).

1820038204 is a wasteful number, since it uses less digits than its factorization.

1820038204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59556 (or 59554 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 1820038204 is about 42661.9057708396. The cubic root of 1820038204 is about 1220.9376926133.

Adding to 1820038204 its reverse (4028300281), we get a palindrome (5848338485).

The spelling of 1820038204 in words is "one billion, eight hundred twenty million, thirty-eight thousand, two hundred four".