42709590 has 96 divisors (see below), whose sum is σ = 138468096. Its totient is φ = 8873280.

The previous prime is 42709543. The next prime is 42709607. The reversal of 42709590 is 9590724.

42709590 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 47 ways as a sum of consecutive naturals, for example, 3849 + ... + 10011.

It is an arithmetic number, because the mean of its divisors is an integer number (1442376).

Almost surely, 2^42709590 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42709590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69234048).

42709590 is an abundant number, since it is smaller than the sum of its proper divisors (95758506).

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

42709590 is a wasteful number, since it uses less digits than its factorization.

42709590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6194 (or 6191 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 42709590 is about 6535.2574547603. The cubic root of 42709590 is about 349.5493247018.

The spelling of 42709590 in words is "forty-two million, seven hundred nine thousand, five hundred ninety".