284213481 has 16 divisors (see below), whose sum is σ = 385013760. Its totient is φ = 186460560.

The previous prime is 284213471. The next prime is 284213509. The reversal of 284213481 is 184312482.

It is not a de Polignac number, because 284213481 - 2⁶ = 284213417 is a prime.

It is a super-2 number, since 2×284213481² = 161554605564274722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (284213431) 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, 76636 + ... + 80258.

It is an arithmetic number, because the mean of its divisors is an integer number (24063360).

Almost surely, 2^284213481 is an apocalyptic number.

It is an amenable number.

284213481 is a deficient number, since it is larger than the sum of its proper divisors (100800279).

284213481 is a wasteful number, since it uses less digits than its factorization.

284213481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4036.

The product of its digits is 12288, while the sum is 33.

The square root of 284213481 is about 16858.6322398942. The cubic root of 284213481 is about 657.4785034440.

Subtracting from 284213481 its reverse (184312482), we obtain a palindrome (99900999).

The spelling of 284213481 in words is "two hundred eighty-four million, two hundred thirteen thousand, four hundred eighty-one".