42806984 has 16 divisors (see below), whose sum is σ = 87559920. Its totient is φ = 19457680.

The previous prime is 42806983. The next prime is 42807029. The reversal of 42806984 is 48960824.

It is not an unprimeable number, because it can be changed into a prime (42806983) 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, 243134 + ... + 243309.

It is an arithmetic number, because the mean of its divisors is an integer number (5472495).

Almost surely, 2^42806984 is an apocalyptic number.

42806984 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

42806984 is an abundant number, since it is smaller than the sum of its proper divisors (44752936).

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

42806984 is a wasteful number, since it uses less digits than its factorization.

42806984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486460 (or 486456 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 42806984 is about 6542.7046395203. The cubic root of 42806984 is about 349.8148244949.

The spelling of 42806984 in words is "forty-two million, eight hundred six thousand, nine hundred eighty-four".