285604428 has 36 divisors (see below), whose sum is σ = 703341240. Its totient is φ = 90189504.

The previous prime is 285604421. The next prime is 285604453. The reversal of 285604428 is 824406582.

285604428 is a modest number, since divided by 4428 gives 2856 as remainder.

It is not an unprimeable number, because it can be changed into a prime (285604421) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 28633 + ... + 37296.

Almost surely, 2^285604428 is an apocalyptic number.

It is an amenable number.

285604428 is an abundant number, since it is smaller than the sum of its proper divisors (417736812).

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

285604428 is a wasteful number, since it uses less digits than its factorization.

285604428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65974 (or 65953 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 39.

The square root of 285604428 is about 16899.8351471250. The cubic root of 285604428 is about 658.5493298546.

The spelling of 285604428 in words is "two hundred eighty-five million, six hundred four thousand, four hundred twenty-eight".