285843648 has 56 divisors (see below), whose sum is σ = 776754352. Its totient is φ = 92703744.

The previous prime is 285843589. The next prime is 285843659. The reversal of 285843648 is 846348582.

It is a super-2 number, since 2×285843648² = 163413182203895808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 285843597 and 285843606.

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, 13015 + ... + 27222.

Almost surely, 2^285843648 is an apocalyptic number.

It is an amenable number.

285843648 is an abundant number, since it is smaller than the sum of its proper divisors (490910704).

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

285843648 is a wasteful number, since it uses less digits than its factorization.

285843648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40289 (or 40279 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 48.

The square root of 285843648 is about 16906.9112495453. The cubic root of 285843648 is about 658.7331437728.

The spelling of 285843648 in words is "two hundred eighty-five million, eight hundred forty-three thousand, six hundred forty-eight".