2105435234 has 12 divisors (see below), whose sum is σ = 3673769814. Its totient is φ = 902329344.

The previous prime is 2105435231. The next prime is 2105435251. The reversal of 2105435234 is 4325345012.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2054355625 + 51079609 = 45325^2 + 7147^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2105435197 and 2105435206.

It is not an unprimeable number, because it can be changed into a prime (2105435231) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10741919 + ... + 10742114.

Almost surely, 2^2105435234 is an apocalyptic number.

2105435234 is a deficient number, since it is larger than the sum of its proper divisors (1568334580).

2105435234 is a wasteful number, since it uses less digits than its factorization.

2105435234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21484049 (or 21484042 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 2105435234 is about 45885.0218916805. The cubic root of 2105435234 is about 1281.6830143817.

The spelling of 2105435234 in words is "two billion, one hundred five million, four hundred thirty-five thousand, two hundred thirty-four".