284474 has 4 divisors (see below), whose sum is σ = 426714. Its totient is φ = 142236.

The previous prime is 284467. The next prime is 284477. The reversal of 284474 is 474482.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 208849 + 75625 = 457^2 + 275^2 .

It is not an unprimeable number, because it can be changed into a prime (284477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71117 + ... + 71120.

2²⁸⁴⁴⁷⁴ is an apocalyptic number.

284474 is a deficient number, since it is larger than the sum of its proper divisors (142240).

284474 is a wasteful number, since it uses less digits than its factorization.

284474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142239.

The product of its digits is 7168, while the sum is 29.

The square root of 284474 is about 533.3610409469. The cubic root of 284474 is about 65.7679330575.

The spelling of 284474 in words is "two hundred eighty-four thousand, four hundred seventy-four".