42939512 has 48 divisors (see below), whose sum is σ = 101154480. Its totient is φ = 16727040.

The previous prime is 42939511. The next prime is 42939521. The reversal of 42939512 is 21593924.

42939512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42939511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3608 + ... + 9944.

It is an arithmetic number, because the mean of its divisors is an integer number (2107385).

Almost surely, 2^42939512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42939512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50577240).

42939512 is an abundant number, since it is smaller than the sum of its proper divisors (58214968).

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

42939512 is a wasteful number, since it uses less digits than its factorization.

42939512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6372 (or 6357 counting only the distinct ones).

The product of its digits is 19440, while the sum is 35.

The square root of 42939512 is about 6552.8247344180. The cubic root of 42939512 is about 350.1754548870.

The spelling of 42939512 in words is "forty-two million, nine hundred thirty-nine thousand, five hundred twelve".