284348138 has 8 divisors (see below), whose sum is σ = 426684132. Its totient is φ = 142120096.

The previous prime is 284348107. The next prime is 284348143. The reversal of 284348138 is 831843482.

It can be written as a sum of positive squares in 2 ways, for example, as 277655569 + 6692569 = 16663^2 + 2587^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 284348095 and 284348104.

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, 20045 + ... + 31152.

Almost surely, 2^284348138 is an apocalyptic number.

284348138 is a deficient number, since it is larger than the sum of its proper divisors (142335994).

284348138 is a wasteful number, since it uses less digits than its factorization.

284348138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53976.

The product of its digits is 147456, while the sum is 41.

The square root of 284348138 is about 16862.6254776651. The cubic root of 284348138 is about 657.5823222402.

The spelling of 284348138 in words is "two hundred eighty-four million, three hundred forty-eight thousand, one hundred thirty-eight".