285142200 has 96 divisors (see below), whose sum is σ = 1010232960. Its totient is φ = 65174400.

The previous prime is 285142189. The next prime is 285142217. The reversal of 285142200 is 2241582.

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

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 23 ways as a sum of consecutive naturals, for example, 29746 + ... + 38145.

It is an arithmetic number, because the mean of its divisors is an integer number (10523260).

Almost surely, 2^285142200 is an apocalyptic number.

285142200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

285142200 is an abundant number, since it is smaller than the sum of its proper divisors (725090760).

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

285142200 is a wasteful number, since it uses less digits than its factorization.

285142200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67917 (or 67908 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 285142200 is about 16886.1540914443. The cubic root of 285142200 is about 658.1938681585.

Adding to 285142200 its reverse (2241582), we get a palindrome (287383782).

The spelling of 285142200 in words is "two hundred eighty-five million, one hundred forty-two thousand, two hundred".