284978634444 has 72 divisors (see below), whose sum is σ = 826805135520. Its totient is φ = 81072997632.

The previous prime is 284978634371. The next prime is 284978634449. The reversal of 284978634444 is 444436879482.

284978634444 is a `hidden beast` number, since 2 + 8 + 497 + 8 + 63 + 44 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (284978634449) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2368039 + ... + 2485470.

It is an arithmetic number, because the mean of its divisors is an integer number (11483404660).

Almost surely, 2^284978634444 is an apocalyptic number.

It is an amenable number.

284978634444 is an abundant number, since it is smaller than the sum of its proper divisors (541826501076).

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

284978634444 is a wasteful number, since it uses less digits than its factorization.

284978634444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4853759 (or 4853754 counting only the distinct ones).

The product of its digits is 148635648, while the sum is 63.

The spelling of 284978634444 in words is "two hundred eighty-four billion, nine hundred seventy-eight million, six hundred thirty-four thousand, four hundred forty-four".