284138451 has 6 divisors (see below), whose sum is σ = 410422220. Its totient is φ = 189425628.

The previous prime is 284138423. The next prime is 284138471. The reversal of 284138451 is 154831482.

It is a de Polignac number, because none of the positive numbers 2^k-284138451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (284138471) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15785461 + ... + 15785478.

Almost surely, 2^284138451 is an apocalyptic number.

284138451 is a deficient number, since it is larger than the sum of its proper divisors (126283769).

284138451 is a wasteful number, since it uses less digits than its factorization.

284138451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31570945 (or 31570942 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 284138451 is about 16856.4068235197. The cubic root of 284138451 is about 657.4206420628.

It can be divided in two parts, 28413 and 8451, that added together give a square (36864 = 192²).

The spelling of 284138451 in words is "two hundred eighty-four million, one hundred thirty-eight thousand, four hundred fifty-one".