2005984854 has 24 divisors (see below), whose sum is σ = 4386924360. Its totient is φ = 662411808.

The previous prime is 2005984823. The next prime is 2005984889. The reversal of 2005984854 is 4584895002.

2005984854 is a `hidden beast` number, since 2 + 0 + 0 + 598 + 4 + 8 + 54 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 518839 + ... + 522690.

It is an arithmetic number, because the mean of its divisors is an integer number (182788515).

Almost surely, 2^2005984854 is an apocalyptic number.

2005984854 is an abundant number, since it is smaller than the sum of its proper divisors (2380939506).

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

2005984854 is a wasteful number, since it uses less digits than its factorization.

2005984854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041644 (or 1041641 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The square root of 2005984854 is about 44788.2222688063. Note that the first 4 decimals coincide. The cubic root of 2005984854 is about 1261.1765389958.

The spelling of 2005984854 in words is "two billion, five million, nine hundred eighty-four thousand, eight hundred fifty-four".