284020404 has 12 divisors (see below), whose sum is σ = 662714304. Its totient is φ = 94673464.

The previous prime is 284020397. The next prime is 284020421. The reversal of 284020404 is 404020482.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11834172 + ... + 11834195.

It is an arithmetic number, because the mean of its divisors is an integer number (55226192).

Almost surely, 2^284020404 is an apocalyptic number.

It is an amenable number.

284020404 is an abundant number, since it is smaller than the sum of its proper divisors (378693900).

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

284020404 is a wasteful number, since it uses less digits than its factorization.

284020404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23668374 (or 23668372 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 284020404 is about 16852.9049128036. The cubic root of 284020404 is about 657.3295863538.

Adding to 284020404 its reverse (404020482), we get a palindrome (688040886).

The spelling of 284020404 in words is "two hundred eighty-four million, twenty thousand, four hundred four".