285025900 has 18 divisors (see below), whose sum is σ = 618506420. Its totient is φ = 114010320.

The previous prime is 285025847. The next prime is 285025921. The reversal of 285025900 is 9520582.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1425030 + ... + 1425229.

Almost surely, 2^285025900 is an apocalyptic number.

285025900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

285025900 is an abundant number, since it is smaller than the sum of its proper divisors (333480520).

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

285025900 is a wasteful number, since it uses less digits than its factorization.

285025900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2850273 (or 2850266 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 285025900 is about 16882.7100905038. The cubic root of 285025900 is about 658.1043708757.

The spelling of 285025900 in words is "two hundred eighty-five million, twenty-five thousand, nine hundred".