42987144 has 32 divisors (see below), whose sum is σ = 107640000. Its totient is φ = 14306112.

The previous prime is 42987097. The next prime is 42987149. The reversal of 42987144 is 44178924.

It is not an unprimeable number, because it can be changed into a prime (42987149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21082 + ... + 23030.

It is an arithmetic number, because the mean of its divisors is an integer number (3363750).

Almost surely, 2^42987144 is an apocalyptic number.

It is an amenable number.

42987144 is an abundant number, since it is smaller than the sum of its proper divisors (64652856).

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

42987144 is a wasteful number, since it uses less digits than its factorization.

42987144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2877 (or 2873 counting only the distinct ones).

The product of its digits is 64512, while the sum is 39.

The square root of 42987144 is about 6556.4581902122. The cubic root of 42987144 is about 350.3048880737.

The spelling of 42987144 in words is "forty-two million, nine hundred eighty-seven thousand, one hundred forty-four".