42747984 has 60 divisors (see below), whose sum is σ = 124846176. Its totient is φ = 13628736.

The previous prime is 42747983. The next prime is 42747989. The reversal of 42747984 is 48974724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42747983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3142 + ... + 9765.

Almost surely, 2^42747984 is an apocalyptic number.

It is an amenable number.

42747984 is an abundant number, since it is smaller than the sum of its proper divisors (82098192).

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

42747984 is a wasteful number, since it uses less digits than its factorization.

42747984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12944 (or 12935 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 42747984 is about 6538.1942461203. The cubic root of 42747984 is about 349.6540363702.

The spelling of 42747984 in words is "forty-two million, seven hundred forty-seven thousand, nine hundred eighty-four".