284545020 has 24 divisors (see below), whose sum is σ = 796726224. Its totient is φ = 75878656.

The previous prime is 284544991. The next prime is 284545049. The reversal of 284545020 is 20545482.

It is an interprime number because it is at equal distance from previous prime (284544991) and next prime (284545049).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2371149 + ... + 2371268.

It is an arithmetic number, because the mean of its divisors is an integer number (33196926).

Almost surely, 2^284545020 is an apocalyptic number.

284545020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

284545020 is an abundant number, since it is smaller than the sum of its proper divisors (512181204).

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

284545020 is a wasteful number, since it uses less digits than its factorization.

284545020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4742429 (or 4742427 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The square root of 284545020 is about 16868.4622891359. The cubic root of 284545020 is about 657.7340567238.

The spelling of 284545020 in words is "two hundred eighty-four million, five hundred forty-five thousand, twenty".