284445 has 48 divisors (see below), whose sum is σ = 601920. Its totient is φ = 127008.

The previous prime is 284429. The next prime is 284447. The reversal of 284445 is 544482.

It is not a de Polignac number, because 284445 - 2⁴ = 284429 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284447) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6594 + ... + 6636.

It is an arithmetic number, because the mean of its divisors is an integer number (12540).

2²⁸⁴⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

284445 is an abundant number, since it is smaller than the sum of its proper divisors (317475).

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

284445 is a wasteful number, since it uses less digits than its factorization.

284445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71 (or 58 counting only the distinct ones).

The product of its digits is 5120, while the sum is 27.

The square root of 284445 is about 533.3338541664. Note that the first 3 decimals coincide. The cubic root of 284445 is about 65.7656981316.

It can be divided in two parts, 284 and 445, that added together give a 6-th power (729 = 3⁶).

The spelling of 284445 in words is "two hundred eighty-four thousand, four hundred forty-five".