2105572 has 24 divisors (see below), whose sum is σ = 4249280. Its totient is φ = 894240.

The previous prime is 2105567. The next prime is 2105591. The reversal of 2105572 is 2755012.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3622 + ... + 4162.

2^2105572 is an apocalyptic number.

It is an amenable number.

2105572 is an abundant number, since it is smaller than the sum of its proper divisors (2143708).

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

2105572 is a wasteful number, since it uses less digits than its factorization.

2105572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691 (or 689 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 2105572 is about 1451.0589236830. The cubic root of 2105572 is about 128.1710765867.

The spelling of 2105572 in words is "two million, one hundred five thousand, five hundred seventy-two".