285451472 has 40 divisors (see below), whose sum is σ = 572677632. Its totient is φ = 137692800.

The previous prime is 285451433. The next prime is 285451483. The reversal of 285451472 is 274154582.

It is a congruent number.

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, 208133 + ... + 209499.

Almost surely, 2^285451472 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 285451472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286338816).

285451472 is an abundant number, since it is smaller than the sum of its proper divisors (287226160).

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

285451472 is a wasteful number, since it uses less digits than its factorization.

285451472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1827 (or 1821 counting only the distinct ones).

The product of its digits is 89600, while the sum is 38.

The square root of 285451472 is about 16895.3091714831. The cubic root of 285451472 is about 658.4317464086.

The spelling of 285451472 in words is "two hundred eighty-five million, four hundred fifty-one thousand, four hundred seventy-two".