1820650832 has 320 divisors, whose sum is σ = 5173002240. Its totient is φ = 597196800.

The previous prime is 1820650829. The next prime is 1820650841. The reversal of 1820650832 is 2380560281.

It is a junction number, because it is equal to n+sod(n) for n = 1820650792 and 1820650801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9433328 + ... + 9433520.

It is an arithmetic number, because the mean of its divisors is an integer number (16165632).

Almost surely, 2^1820650832 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1820650832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2586501120).

1820650832 is an abundant number, since it is smaller than the sum of its proper divisors (3352351408).

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

1820650832 is a wasteful number, since it uses less digits than its factorization.

1820650832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 276 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 1820650832 is about 42669.0852022867. The cubic root of 1820650832 is about 1221.0746671571.

The spelling of 1820650832 in words is "one billion, eight hundred twenty million, six hundred fifty thousand, eight hundred thirty-two".