2105454432 has 24 divisors (see below), whose sum is σ = 5526818136. Its totient is φ = 701818112.

The previous prime is 2105454419. The next prime is 2105454479. The reversal of 2105454432 is 2344545012.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2105454432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10965813 + ... + 10966004.

It is an arithmetic number, because the mean of its divisors is an integer number (230284089).

Almost surely, 2^2105454432 is an apocalyptic number.

It is an amenable number.

2105454432 is an abundant number, since it is smaller than the sum of its proper divisors (3421363704).

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

2105454432 is a wasteful number, since it uses less digits than its factorization.

2105454432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21931830 (or 21931822 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 2105454432 is about 45885.2310880091. The cubic root of 2105454432 is about 1281.6869099620.

Adding to 2105454432 its reverse (2344545012), we get a palindrome (4449999444).

The spelling of 2105454432 in words is "two billion, one hundred five million, four hundred fifty-four thousand, four hundred thirty-two".