2106233928 has 80 divisors (see below), whose sum is σ = 5906104380. Its totient is φ = 701281152.

The previous prime is 2106233891. The next prime is 2106233929. The reversal of 2106233928 is 8293326012.

2106233928 is a `hidden beast` number, since 2 + 1 + 0 + 623 + 3 + 9 + 28 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1671010884 + 435223044 = 40878^2 + 20862^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2106233892 and 2106233901.

It is not an unprimeable number, because it can be changed into a prime (2106233929) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 940426 + ... + 942662.

Almost surely, 2^2106233928 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 2106233928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2953052190).

2106233928 is an abundant number, since it is smaller than the sum of its proper divisors (3799870452).

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

2106233928 is a wasteful number, since it uses less digits than its factorization.

2106233928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3708 (or 3695 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 2106233928 is about 45893.7242768551. The cubic root of 2106233928 is about 1281.8450621302.

The spelling of 2106233928 in words is "two billion, one hundred six million, two hundred thirty-three thousand, nine hundred twenty-eight".