2105258456 has 32 divisors (see below), whose sum is σ = 4578608640. Its totient is φ = 888785568.

The previous prime is 2105258431. The next prime is 2105258479. The reversal of 2105258456 is 6548525012.

It is a super-2 number, since 2×2105258456² = 8864226333119007872, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276800 + ... + 284303.

It is an arithmetic number, because the mean of its divisors is an integer number (143081520).

Almost surely, 2^2105258456 is an apocalyptic number.

It is an amenable number.

2105258456 is an abundant number, since it is smaller than the sum of its proper divisors (2473350184).

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

2105258456 is a wasteful number, since it uses less digits than its factorization.

2105258456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561183 (or 561179 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 38.

The square root of 2105258456 is about 45883.0955363737. The cubic root of 2105258456 is about 1281.6471421944.

The spelling of 2105258456 in words is "two billion, one hundred five million, two hundred fifty-eight thousand, four hundred fifty-six".