284004428 has 12 divisors (see below), whose sum is σ = 497520240. Its totient is φ = 141855792.

The previous prime is 284004407. The next prime is 284004451. The reversal of 284004428 is 824400482.

It is a junction number, because it is equal to n+sod(n) for n = 284004394 and 284004403.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32183 + ... + 40046.

It is an arithmetic number, because the mean of its divisors is an integer number (41460020).

Almost surely, 2^284004428 is an apocalyptic number.

It is an amenable number.

284004428 is a deficient number, since it is larger than the sum of its proper divisors (213515812).

284004428 is a wasteful number, since it uses less digits than its factorization.

284004428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73216 (or 73214 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 32.

The square root of 284004428 is about 16852.4309225702. The cubic root of 284004428 is about 657.3172613069.

The spelling of 284004428 in words is "two hundred eighty-four million, four thousand, four hundred twenty-eight".