42521148 has 108 divisors (see below), whose sum is σ = 117782392. Its totient is φ = 12925440.

The previous prime is 42521117. The next prime is 42521153. The reversal of 42521148 is 84112524.

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 634611 + ... + 634677.

Almost surely, 2^42521148 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 42521148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58891196).

42521148 is an abundant number, since it is smaller than the sum of its proper divisors (75261244).

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

42521148 is a wasteful number, since it uses less digits than its factorization.

42521148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 150 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 42521148 is about 6520.8241810372. The cubic root of 42521148 is about 349.0344763329.

The spelling of 42521148 in words is "forty-two million, five hundred twenty-one thousand, one hundred forty-eight".