42529580 has 48 divisors (see below), whose sum is σ = 96798240. Its totient is φ = 15633408.

The previous prime is 42529579. The next prime is 42529589. The reversal of 42529580 is 8592524.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 42529580.

It is not an unprimeable number, because it can be changed into a prime (42529589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13166 + ... + 16074.

It is an arithmetic number, because the mean of its divisors is an integer number (2016630).

Almost surely, 2^42529580 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 42529580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48399120).

42529580 is an abundant number, since it is smaller than the sum of its proper divisors (54268660).

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

42529580 is a wasteful number, since it uses less digits than its factorization.

42529580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2978 (or 2976 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 42529580 is about 6521.4706930262. The cubic root of 42529580 is about 349.0575461411.

The spelling of 42529580 in words is "forty-two million, five hundred twenty-nine thousand, five hundred eighty".