284810138 has 8 divisors (see below), whose sum is σ = 427500288. Its totient is φ = 142310044.

The previous prime is 284810117. The next prime is 284810147. The reversal of 284810138 is 831018482.

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

It is a super-2 number, since 2×284810138² = 162233629415158088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 284810098 and 284810107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43706 + ... + 49797.

It is an arithmetic number, because the mean of its divisors is an integer number (53437536).

Almost surely, 2^284810138 is an apocalyptic number.

284810138 is a deficient number, since it is larger than the sum of its proper divisors (142690150).

284810138 is a wasteful number, since it uses less digits than its factorization.

284810138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95028.

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 284810138 is about 16876.3188521668. The cubic root of 284810138 is about 657.9382692926.

The spelling of 284810138 in words is "two hundred eighty-four million, eight hundred ten thousand, one hundred thirty-eight".