1820283804 has 18 divisors (see below), whose sum is σ = 4601273040. Its totient is φ = 606761256.

The previous prime is 1820283797. The next prime is 1820283811. The reversal of 1820283804 is 4083820281.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1820283797) and next prime (1820283811).

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×1820283804³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 50563439 = 1820283804 / (1 + 8 + 2 + 0 + 2 + 8 + 3 + 8 + 0 + 4).

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 25281684 + ... + 25281755.

It is an arithmetic number, because the mean of its divisors is an integer number (255626280).

Almost surely, 2^1820283804 is an apocalyptic number.

It is an amenable number.

1820283804 is an abundant number, since it is smaller than the sum of its proper divisors (2780989236).

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

1820283804 is a wasteful number, since it uses less digits than its factorization.

1820283804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50563449 (or 50563444 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 1820283804 is about 42664.7841199273. The cubic root of 1820283804 is about 1220.9926088250.

The spelling of 1820283804 in words is "one billion, eight hundred twenty million, two hundred eighty-three thousand, eight hundred four".