285510428 has 12 divisors (see below), whose sum is σ = 571020912. Its totient is φ = 122361600.

The previous prime is 285510419. The next prime is 285510437. The reversal of 285510428 is 824015582.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (285510419) and next prime (285510437).

285510428 is an admirable number.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5098373 + ... + 5098428.

It is an arithmetic number, because the mean of its divisors is an integer number (47585076).

Almost surely, 2^285510428 is an apocalyptic number.

285510428 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

285510428 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

285510428 is a wasteful number, since it uses less digits than its factorization.

285510428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10196812 (or 10196810 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 35.

The square root of 285510428 is about 16897.0538260372. The cubic root of 285510428 is about 658.4770732372.

The spelling of 285510428 in words is "two hundred eighty-five million, five hundred ten thousand, four hundred twenty-eight".