284745243 has 16 divisors (see below), whose sum is σ = 386122496. Its totient is φ = 186611040.

The previous prime is 284745217. The next prime is 284745281. The reversal of 284745243 is 342547482.

It is a happy number.

It is not a de Polignac number, because 284745243 - 2⁵ = 284745211 is a prime.

It is a super-2 number, since 2×284745243² = 162159706822258098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (284245243) 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, 122058 + ... + 124368.

It is an arithmetic number, because the mean of its divisors is an integer number (24132656).

Almost surely, 2^284745243 is an apocalyptic number.

284745243 is a deficient number, since it is larger than the sum of its proper divisors (101377253).

284745243 is a wasteful number, since it uses less digits than its factorization.

284745243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2994.

The product of its digits is 215040, while the sum is 39.

The square root of 284745243 is about 16874.3960780823. The cubic root of 284745243 is about 657.8882943074. Note that the first 3 decimals are identical.

The spelling of 284745243 in words is "two hundred eighty-four million, seven hundred forty-five thousand, two hundred forty-three".