2105406054 has 32 divisors (see below), whose sum is σ = 4735059840. Its totient is φ = 693345096.

The previous prime is 2105406001. The next prime is 2105406071. The reversal of 2105406054 is 4506045012.

2105406054 is a `hidden beast` number, since 2 + 1 + 0 + 54 + 0 + 605 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230392 + ... + 239355.

It is an arithmetic number, because the mean of its divisors is an integer number (147970620).

Almost surely, 2^2105406054 is an apocalyptic number.

2105406054 is an abundant number, since it is smaller than the sum of its proper divisors (2629653786).

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

2105406054 is a wasteful number, since it uses less digits than its factorization.

2105406054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469841 (or 469835 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 2105406054 is about 45884.7039218954. The cubic root of 2105406054 is about 1281.6770932492.

The spelling of 2105406054 in words is "two billion, one hundred five million, four hundred six thousand, fifty-four".