284138733 has 16 divisors (see below), whose sum is σ = 389011392. Its totient is φ = 184368000.

The previous prime is 284138717. The next prime is 284138737. The reversal of 284138733 is 337831482.

It is not a de Polignac number, because 284138733 - 2⁴ = 284138717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 284138691 and 284138700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284138737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54198 + ... + 59208.

It is an arithmetic number, because the mean of its divisors is an integer number (24313212).

Almost surely, 2^284138733 is an apocalyptic number.

It is an amenable number.

284138733 is a deficient number, since it is larger than the sum of its proper divisors (104872659).

284138733 is a wasteful number, since it uses less digits than its factorization.

284138733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5516.

The product of its digits is 96768, while the sum is 39.

The square root of 284138733 is about 16856.4151882896. The cubic root of 284138733 is about 657.4208595537.

The spelling of 284138733 in words is "two hundred eighty-four million, one hundred thirty-eight thousand, seven hundred thirty-three".