285873456 has 80 divisors (see below), whose sum is σ = 817769088. Its totient is φ = 85324800.

The previous prime is 285873451. The next prime is 285873481. The reversal of 285873456 is 654378582.

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

It is not an unprimeable number, because it can be changed into a prime (285873451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31336 + ... + 39416.

Almost surely, 2^285873456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 285873456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (408884544).

285873456 is an abundant number, since it is smaller than the sum of its proper divisors (531895632).

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

285873456 is a wasteful number, since it uses less digits than its factorization.

285873456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8170 (or 8164 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 48.

The square root of 285873456 is about 16907.7927595532. The cubic root of 285873456 is about 658.7560407134.

The spelling of 285873456 in words is "two hundred eighty-five million, eight hundred seventy-three thousand, four hundred fifty-six".