205141380 has 48 divisors (see below), whose sum is σ = 608186880. Its totient is φ = 51486208.

The previous prime is 205141367. The next prime is 205141399. The reversal of 205141380 is 83141502.

It is a self number, because there is not a number n which added to its sum of digits gives 205141380.

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, 99540 + ... + 101579.

It is an arithmetic number, because the mean of its divisors is an integer number (12670560).

Almost surely, 2^205141380 is an apocalyptic number.

205141380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

205141380 is an abundant number, since it is smaller than the sum of its proper divisors (403045500).

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

205141380 is a wasteful number, since it uses less digits than its factorization.

205141380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201148 (or 201146 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 205141380 is about 14322.7574160844. The cubic root of 205141380 is about 589.7723722113.

Adding to 205141380 its reverse (83141502), we get a palindrome (288282882).

The spelling of 205141380 in words is "two hundred five million, one hundred forty-one thousand, three hundred eighty".