2105440426 has 32 divisors (see below), whose sum is σ = 3477816000. Its totient is φ = 952060032.

The previous prime is 2105440409. The next prime is 2105440453. The reversal of 2105440426 is 6240445012.

It is a super-2 number, since 2×2105440426² = 8865758774870122952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2105440394 and 2105440403.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87345 + ... + 108811.

It is an arithmetic number, because the mean of its divisors is an integer number (108681750).

Almost surely, 2^2105440426 is an apocalyptic number.

2105440426 is a deficient number, since it is larger than the sum of its proper divisors (1372375574).

2105440426 is a wasteful number, since it uses less digits than its factorization.

2105440426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21606.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 2105440426 is about 45885.0784678418. The cubic root of 2105440426 is about 1281.6840679236.

Adding to 2105440426 its reverse (6240445012), we get a palindrome (8345885438).

The spelling of 2105440426 in words is "two billion, one hundred five million, four hundred forty thousand, four hundred twenty-six".