285120068 has 24 divisors (see below), whose sum is σ = 516122880. Its totient is φ = 137724480.

The previous prime is 285120047. The next prime is 285120079. The reversal of 285120068 is 860021582.

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, 8453 + ... + 25331.

It is an arithmetic number, because the mean of its divisors is an integer number (21505120).

Almost surely, 2^285120068 is an apocalyptic number.

It is an amenable number.

285120068 is a deficient number, since it is larger than the sum of its proper divisors (231002812).

285120068 is a wasteful number, since it uses less digits than its factorization.

285120068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17027 (or 17025 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 285120068 is about 16885.4987489265. The cubic root of 285120068 is about 658.1768386161.

The spelling of 285120068 in words is "two hundred eighty-five million, one hundred twenty thousand, sixty-eight".