2105235426 has 128 divisors (see below), whose sum is σ = 5212408320. Its totient is φ = 553254912.

The previous prime is 2105235401. The next prime is 2105235427. The reversal of 2105235426 is 6245325012.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2105235393 and 2105235402.

It is not an unprimeable number, because it can be changed into a prime (2105235427) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7826020 + ... + 7826288.

It is an arithmetic number, because the mean of its divisors is an integer number (40721940).

Almost surely, 2^2105235426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2105235426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2606204160).

2105235426 is an abundant number, since it is smaller than the sum of its proper divisors (3107172894).

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

2105235426 is a wasteful number, since it uses less digits than its factorization.

2105235426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 2105235426 is about 45882.8445718005. The cubic root of 2105235426 is about 1281.6424687474.

The spelling of 2105235426 in words is "two billion, one hundred five million, two hundred thirty-five thousand, four hundred twenty-six".