42887544 has 48 divisors (see below), whose sum is σ = 124727400. Its totient is φ = 12253248.

The previous prime is 42887543. The next prime is 42887557. The reversal of 42887544 is 44578824.

42887544 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 (42).

It is a junction number, because it is equal to n+sod(n) for n = 42887496 and 42887505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42887543) 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 11 ways as a sum of consecutive naturals, for example, 17059 + ... + 19410.

Almost surely, 2^42887544 is an apocalyptic number.

It is an amenable number.

42887544 is an abundant number, since it is smaller than the sum of its proper divisors (81839856).

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

42887544 is a wasteful number, since it uses less digits than its factorization.

42887544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36492 (or 36481 counting only the distinct ones).

The product of its digits is 286720, while the sum is 42.

The square root of 42887544 is about 6548.8582210947. The cubic root of 42887544 is about 350.0341300051.

The spelling of 42887544 in words is "forty-two million, eight hundred eighty-seven thousand, five hundred forty-four".