42155448 has 32 divisors (see below), whose sum is σ = 106166160. Its totient is φ = 13948160.

The previous prime is 42155447. The next prime is 42155459. The reversal of 42155448 is 84455124.

It is a happy number.

42155448 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 not an unprimeable number, because it can be changed into a prime (42155447) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3123 + ... + 9698.

Almost surely, 2^42155448 is an apocalyptic number.

It is an amenable number.

42155448 is an abundant number, since it is smaller than the sum of its proper divisors (64010712).

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

42155448 is a wasteful number, since it uses less digits than its factorization.

42155448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12967 (or 12963 counting only the distinct ones).

The product of its digits is 25600, while the sum is 33.

The square root of 42155448 is about 6492.7226954491. The cubic root of 42155448 is about 348.0309788778.

The spelling of 42155448 in words is "forty-two million, one hundred fifty-five thousand, four hundred forty-eight".