2105450 has 24 divisors (see below), whose sum is σ = 4148172. Its totient is φ = 792320.

The previous prime is 2105449. The next prime is 2105483. The reversal of 2105450 is 545012.

It can be written as a sum of positive squares in 6 ways, for example, as 1067089 + 1038361 = 1033^2 + 1019^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an Ulam number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 389 + ... + 2088.

2^2105450 is an apocalyptic number.

2105450 is a deficient number, since it is larger than the sum of its proper divisors (2042722).

2105450 is a wasteful number, since it uses less digits than its factorization.

2105450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2506 (or 2501 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 2105450 is about 1451.0168848087. The cubic root of 2105450 is about 128.1686010641.

The spelling of 2105450 in words is "two million, one hundred five thousand, four hundred fifty".