285408104 has 32 divisors (see below), whose sum is σ = 591261120. Its totient is φ = 128468736.

The previous prime is 285408083. The next prime is 285408113. The reversal of 285408104 is 401804582.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42494 + ... + 48749.

It is an arithmetic number, because the mean of its divisors is an integer number (18476910).

Almost surely, 2^285408104 is an apocalyptic number.

It is an amenable number.

285408104 is an abundant number, since it is smaller than the sum of its proper divisors (305853016).

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

285408104 is a wasteful number, since it uses less digits than its factorization.

285408104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91289 (or 91285 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 285408104 is about 16894.0256895744. The cubic root of 285408104 is about 658.3984000351.

The spelling of 285408104 in words is "two hundred eighty-five million, four hundred eight thousand, one hundred four".