204142560 has 48 divisors (see below), whose sum is σ = 643050576. Its totient is φ = 54437888.

The previous prime is 204142541. The next prime is 204142597. The reversal of 204142560 is 65241402.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 204142560.

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, 212169 + ... + 213128.

It is an arithmetic number, because the mean of its divisors is an integer number (13396887).

Almost surely, 2^204142560 is an apocalyptic number.

204142560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204142560 is an abundant number, since it is smaller than the sum of its proper divisors (438908016).

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

204142560 is a wasteful number, since it uses less digits than its factorization.

204142560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425315 (or 425307 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 204142560 is about 14287.8465837228. The cubic root of 204142560 is about 588.8136267621.

Adding to 204142560 its reverse (65241402), we get a palindrome (269383962).

The spelling of 204142560 in words is "two hundred four million, one hundred forty-two thousand, five hundred sixty".