284472780 has 48 divisors (see below), whose sum is σ = 797282304. Its totient is φ = 75787200.

The previous prime is 284472767. The next prime is 284472787. The reversal of 284472780 is 87274482.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (284472787) 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, 98355 + ... + 101205.

It is an arithmetic number, because the mean of its divisors is an integer number (16610048).

Almost surely, 2^284472780 is an apocalyptic number.

284472780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

284472780 is an abundant number, since it is smaller than the sum of its proper divisors (512809524).

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

284472780 is a wasteful number, since it uses less digits than its factorization.

284472780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4526 (or 4524 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 42.

The square root of 284472780 is about 16866.3208791959. The cubic root of 284472780 is about 657.6783903951.

The spelling of 284472780 in words is "two hundred eighty-four million, four hundred seventy-two thousand, seven hundred eighty".