1820339696 has 40 divisors (see below), whose sum is σ = 4106817504. Its totient is φ = 765423360.

The previous prime is 1820339681. The next prime is 1820339699. The reversal of 1820339696 is 6969330281.

It is a self number, because there is not a number n which added to its sum of digits gives 1820339696.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1820339699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147395 + ... + 159266.

Almost surely, 2^1820339696 is an apocalyptic number.

1820339696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1820339696 is an abundant number, since it is smaller than the sum of its proper divisors (2286477808).

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

1820339696 is a wasteful number, since it uses less digits than its factorization.

1820339696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306729 (or 306723 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 47.

The square root of 1820339696 is about 42665.4391281749. The cubic root of 1820339696 is about 1221.0051055980.

The spelling of 1820339696 in words is "one billion, eight hundred twenty million, three hundred thirty-nine thousand, six hundred ninety-six".