2105424450 has 36 divisors (see below), whose sum is σ = 5656574898. Its totient is φ = 561446400.

The previous prime is 2105424443. The next prime is 2105424473. The reversal of 2105424450 is 544245012.

2105424450 is a `hidden beast` number, since 210 + 5 + 4 + 2 + 445 + 0 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 906672321 + 1198752129 = 30111^2 + 34623^2 .

It is a super-2 number, since 2×2105424450² = 8865624229315605000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2338911 + ... + 2339810.

Almost surely, 2^2105424450 is an apocalyptic number.

2105424450 is an abundant number, since it is smaller than the sum of its proper divisors (3551150448).

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

2105424450 is a wasteful number, since it uses less digits than its factorization.

2105424450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4678739 (or 4678731 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 2105424450 is about 45884.9043804169. The cubic root of 2105424450 is about 1281.6808261258.

Adding to 2105424450 its reverse (544245012), we get a palindrome (2649669462).

The spelling of 2105424450 in words is "two billion, one hundred five million, four hundred twenty-four thousand, four hundred fifty".