284471442 has 12 divisors (see below), whose sum is σ = 616354830. Its totient is φ = 94823808.

The previous prime is 284471431. The next prime is 284471459. The reversal of 284471442 is 244174482.

It can be written as a sum of positive squares in only one way, i.e., 278522721 + 5948721 = 16689^2 + 2439^2 .

It is a junction number, because it is equal to n+sod(n) for n = 284471397 and 284471406.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7901967 + ... + 7902002.

Almost surely, 2^284471442 is an apocalyptic number.

284471442 is an abundant number, since it is smaller than the sum of its proper divisors (331883388).

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

284471442 is a wasteful number, since it uses less digits than its factorization.

284471442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15803977 (or 15803974 counting only the distinct ones).

The product of its digits is 57344, while the sum is 36.

The square root of 284471442 is about 16866.2812143045. The cubic root of 284471442 is about 657.6773592770.

The spelling of 284471442 in words is "two hundred eighty-four million, four hundred seventy-one thousand, four hundred forty-two".