285298704 has 120 divisors (see below), whose sum is σ = 835660800. Its totient is φ = 90754560.

The previous prime is 285298703. The next prime is 285298721. The reversal of 285298704 is 407892582.

285298704 = 142² + 143² + ... + 950².

It is a self number, because there is not a number n which added to its sum of digits gives 285298704.

It is not an unprimeable number, because it can be changed into a prime (285298703) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 352252 + ... + 353060.

It is an arithmetic number, because the mean of its divisors is an integer number (6963840).

Almost surely, 2^285298704 is an apocalyptic number.

285298704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 285298704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (417830400).

285298704 is an abundant number, since it is smaller than the sum of its proper divisors (550362096).

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

285298704 is a wasteful number, since it uses less digits than its factorization.

285298704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933 (or 924 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 285298704 is about 16890.7875482465. The cubic root of 285298704 is about 658.3142655518.

The spelling of 285298704 in words is "two hundred eighty-five million, two hundred ninety-eight thousand, seven hundred four".