42984256 has 28 divisors (see below), whose sum is σ = 97483168. Its totient is φ = 18421632.

The previous prime is 42984239. The next prime is 42984257. The reversal of 42984256 is 65248924.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42984257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47526 + ... + 48421.

Almost surely, 2^42984256 is an apocalyptic number.

It is an amenable number.

42984256 is an abundant number, since it is smaller than the sum of its proper divisors (54498912).

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

42984256 is an equidigital number, since it uses as much as digits as its factorization.

42984256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95966 (or 95956 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The square root of 42984256 is about 6556.2379456515. The cubic root of 42984256 is about 350.2970430680.

The spelling of 42984256 in words is "forty-two million, nine hundred eighty-four thousand, two hundred fifty-six".