205084879240 has 32 divisors (see below), whose sum is σ = 481503631680. Its totient is φ = 78467257792.

The previous prime is 205084879213. The next prime is 205084879253. The reversal of 205084879240 is 42978480502.

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, 111458254 + ... + 111460093.

It is an arithmetic number, because the mean of its divisors is an integer number (15046988490).

Almost surely, 2^205084879240 is an apocalyptic number.

205084879240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

205084879240 is an abundant number, since it is smaller than the sum of its proper divisors (276418752440).

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

205084879240 is a wasteful number, since it uses less digits than its factorization.

205084879240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222918381 (or 222918377 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 49.

The spelling of 205084879240 in words is "two hundred five billion, eighty-four million, eight hundred seventy-nine thousand, two hundred forty".