285153684 has 12 divisors (see below), whose sum is σ = 665358624. Its totient is φ = 95051224.

The previous prime is 285153677. The next prime is 285153689. The reversal of 285153684 is 486351582.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285153689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11881392 + ... + 11881415.

It is an arithmetic number, because the mean of its divisors is an integer number (55446552).

Almost surely, 2^285153684 is an apocalyptic number.

It is an amenable number.

285153684 is an abundant number, since it is smaller than the sum of its proper divisors (380204940).

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

285153684 is a wasteful number, since it uses less digits than its factorization.

285153684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23762814 (or 23762812 counting only the distinct ones).

The product of its digits is 230400, while the sum is 42.

The square root of 285153684 is about 16886.4941299253. The cubic root of 285153684 is about 658.2027042140.

The spelling of 285153684 in words is "two hundred eighty-five million, one hundred fifty-three thousand, six hundred eighty-four".