42140588 has 36 divisors (see below), whose sum is σ = 87093720. Its totient is φ = 17785152.

The previous prime is 42140587. The next prime is 42140591. The reversal of 42140588 is 88504124.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (42140587) 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, 11528 + ... + 14736.

It is an arithmetic number, because the mean of its divisors is an integer number (2419270).

Almost surely, 2^42140588 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 42140588, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43546860).

42140588 is an abundant number, since it is smaller than the sum of its proper divisors (44953132).

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

42140588 is a wasteful number, since it uses less digits than its factorization.

42140588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3294 (or 3285 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 42140588 is about 6491.5782364538. The cubic root of 42140588 is about 347.9900798687.

The spelling of 42140588 in words is "forty-two million, one hundred forty thousand, five hundred eighty-eight".