284822138 has 8 divisors (see below), whose sum is σ = 430597632. Its totient is φ = 141289596.

The previous prime is 284822119. The next prime is 284822147. The reversal of 284822138 is 831228482.

It is a happy number.

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

It is a super-2 number, since 2×284822138² = 162247300589782088, which contains 22 as substring.

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, 560420 + ... + 560927.

It is an arithmetic number, because the mean of its divisors is an integer number (53824704).

Almost surely, 2^284822138 is an apocalyptic number.

284822138 is a deficient number, since it is larger than the sum of its proper divisors (145775494).

284822138 is a wasteful number, since it uses less digits than its factorization.

284822138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121476.

The product of its digits is 49152, while the sum is 38.

The square root of 284822138 is about 16876.6743761915. The cubic root of 284822138 is about 657.9475095399.

The spelling of 284822138 in words is "two hundred eighty-four million, eight hundred twenty-two thousand, one hundred thirty-eight".