1808830932 has 72 divisors (see below), whose sum is σ = 4517940672. Its totient is φ = 563068800.

The previous prime is 1808830931. The next prime is 1808830937. The reversal of 1808830932 is 2390388081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1808830931) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 304632 + ... + 310512.

It is an arithmetic number, because the mean of its divisors is an integer number (62749176).

Almost surely, 2^1808830932 is an apocalyptic number.

1808830932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1808830932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2258970336).

1808830932 is an abundant number, since it is smaller than the sum of its proper divisors (2709109740).

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

1808830932 is a wasteful number, since it uses less digits than its factorization.

1808830932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5997 (or 5976 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 1808830932 is about 42530.3530669568. The cubic root of 1808830932 is about 1218.4264699785.

The spelling of 1808830932 in words is "one billion, eight hundred eight million, eight hundred thirty thousand, nine hundred thirty-two".