284237472840 has 32 divisors (see below), whose sum is σ = 852712418880. Its totient is φ = 75796659392.

The previous prime is 284237472821. The next prime is 284237472853. The reversal of 284237472840 is 48274732482.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1184322684 + ... + 1184322923.

It is an arithmetic number, because the mean of its divisors is an integer number (26647263090).

Almost surely, 2^284237472840 is an apocalyptic number.

284237472840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

284237472840 is an abundant number, since it is smaller than the sum of its proper divisors (568474946040).

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

284237472840 is a wasteful number, since it uses less digits than its factorization.

284237472840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2368645621 (or 2368645617 counting only the distinct ones).

The product of its (nonzero) digits is 4816896, while the sum is 51.

The spelling of 284237472840 in words is "two hundred eighty-four billion, two hundred thirty-seven million, four hundred seventy-two thousand, eight hundred forty".