284528442 has 16 divisors (see below), whose sum is σ = 620789472. Its totient is φ = 86220720.

The previous prime is 284528417. The next prime is 284528443. The reversal of 284528442 is 244825482.

It is a self number, because there is not a number n which added to its sum of digits gives 284528442.

It is not an unprimeable number, because it can be changed into a prime (284528443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2155453 + ... + 2155584.

It is an arithmetic number, because the mean of its divisors is an integer number (38799342).

Almost surely, 2^284528442 is an apocalyptic number.

284528442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

284528442 is an abundant number, since it is smaller than the sum of its proper divisors (336261030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

284528442 is a wasteful number, since it uses less digits than its factorization.

284528442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4311053.

The product of its digits is 163840, while the sum is 39.

The square root of 284528442 is about 16867.9708916040. The cubic root of 284528442 is about 657.7212829666.

The spelling of 284528442 in words is "two hundred eighty-four million, five hundred twenty-eight thousand, four hundred forty-two".