2100605826 has 32 divisors (see below), whose sum is σ = 4610608128. Its totient is φ = 632732240.

The previous prime is 2100605797. The next prime is 2100605831. The reversal of 2100605826 is 6285060012.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2100605793 and 2100605802.

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, 84270 + ... + 106313.

It is an arithmetic number, because the mean of its divisors is an integer number (144081504).

Almost surely, 2^2100605826 is an apocalyptic number.

2100605826 is an abundant number, since it is smaller than the sum of its proper divisors (2510002302).

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

2100605826 is a wasteful number, since it uses less digits than its factorization.

2100605826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190766.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 2100605826 is about 45832.3665764708. The cubic root of 2100605826 is about 1280.7022972988.

Adding to 2100605826 its reverse (6285060012), we get a palindrome (8385665838).

The spelling of 2100605826 in words is "two billion, one hundred million, six hundred five thousand, eight hundred twenty-six".