2105430 has 16 divisors (see below), whose sum is σ = 5053104. Its totient is φ = 561440.

The previous prime is 2105419. The next prime is 2105431. The reversal of 2105430 is 345012.

It is a Harshad number since it is a multiple of its sum of digits (15).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105431) 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, 35061 + ... + 35120.

It is an arithmetic number, because the mean of its divisors is an integer number (315819).

2^2105430 is an apocalyptic number.

2105430 is an abundant number, since it is smaller than the sum of its proper divisors (2947674).

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

2105430 is a wasteful number, since it uses less digits than its factorization.

2105430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70191.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 2105430 is about 1451.0099930738. The cubic root of 2105430 is about 128.1681952316.

The spelling of 2105430 in words is "two million, one hundred five thousand, four hundred thirty".