2084821830 has 96 divisors (see below), whose sum is σ = 6671456064. Its totient is φ = 439872768.

The previous prime is 2084821829. The next prime is 2084821831. The reversal of 2084821830 is 381284802.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2084821829) and next prime (2084821831).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2084821831) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 119089 + ... + 135468.

It is an arithmetic number, because the mean of its divisors is an integer number (69494334).

Almost surely, 2^2084821830 is an apocalyptic number.

2084821830 is an abundant number, since it is smaller than the sum of its proper divisors (4586634234).

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

2084821830 is a wasteful number, since it uses less digits than its factorization.

2084821830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254590 (or 254587 counting only the distinct ones).

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

The square root of 2084821830 is about 45659.8492113147. The cubic root of 2084821830 is about 1277.4864879858.

The spelling of 2084821830 in words is "two billion, eighty-four million, eight hundred twenty-one thousand, eight hundred thirty".