42538734 has 24 divisors (see below), whose sum is σ = 105334320. Its totient is φ = 12153888.

The previous prime is 42538729. The next prime is 42538747. The reversal of 42538734 is 43783524.

It is a happy number.

42538734 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 an unprimeable number.

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, 168679 + ... + 168930.

It is an arithmetic number, because the mean of its divisors is an integer number (4388930).

Almost surely, 2^42538734 is an apocalyptic number.

42538734 is an abundant number, since it is smaller than the sum of its proper divisors (62795586).

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

42538734 is a wasteful number, since it uses less digits than its factorization.

42538734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337624 (or 337621 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 42538734 is about 6522.1724908193. The cubic root of 42538734 is about 349.0825878772.

The spelling of 42538734 in words is "forty-two million, five hundred thirty-eight thousand, seven hundred thirty-four".