42981552 has 30 divisors (see below), whose sum is σ = 120289052. Its totient is φ = 14327136.

The previous prime is 42981551. The next prime is 42981563. The reversal of 42981552 is 25518924.

42981552 is a `hidden beast` number, since 4 + 29 + 81 + 552 = 666.

42981552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (42981551) 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 5 ways as a sum of consecutive naturals, for example, 149098 + ... + 149385.

Almost surely, 2^42981552 is an apocalyptic number.

It is an amenable number.

42981552 is an abundant number, since it is smaller than the sum of its proper divisors (77307500).

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

42981552 is a wasteful number, since it uses less digits than its factorization.

42981552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298497 (or 298488 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 42981552 is about 6556.0317265858. The cubic root of 42981552 is about 350.2896975640.

The spelling of 42981552 in words is "forty-two million, nine hundred eighty-one thousand, five hundred fifty-two".