284294421 has 32 divisors (see below), whose sum is σ = 451403520. Its totient is φ = 176375232.

The previous prime is 284294419. The next prime is 284294429. The reversal of 284294421 is 124492482.

It is not a de Polignac number, because 284294421 - 2¹ = 284294419 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284294429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16791 + ... + 29163.

It is an arithmetic number, because the mean of its divisors is an integer number (14106360).

Almost surely, 2^284294421 is an apocalyptic number.

It is an amenable number.

284294421 is a deficient number, since it is larger than the sum of its proper divisors (167109099).

284294421 is a wasteful number, since it uses less digits than its factorization.

284294421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12442 (or 12436 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 284294421 is about 16861.0326196233. The cubic root of 284294421 is about 657.5409110621.

The spelling of 284294421 in words is "two hundred eighty-four million, two hundred ninety-four thousand, four hundred twenty-one".