2105412 has 24 divisors (see below), whose sum is σ = 5018496. Its totient is φ = 686688.

The previous prime is 2105407. The next prime is 2105413. The reversal of 2105412 is 2145012.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 2105391 and 2105400.

It is not an unprimeable number, because it can be changed into a prime (2105413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1303 + ... + 2430.

It is an arithmetic number, because the mean of its divisors is an integer number (209104).

2^2105412 is an apocalyptic number.

It is an amenable number.

2105412 is an abundant number, since it is smaller than the sum of its proper divisors (2913084).

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

2105412 is a wasteful number, since it uses less digits than its factorization.

2105412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3787 (or 3785 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 2105412 is about 1451.0037904844. The cubic root of 2105412 is about 128.1678299801.

The spelling of 2105412 in words is "two million, one hundred five thousand, four hundred twelve".