42887280 has 40 divisors (see below), whose sum is σ = 132951312. Its totient is φ = 11436544.

The previous prime is 42887279. The next prime is 42887309. The reversal of 42887280 is 8278824.

It is a tau number, because it is divible by the number of its divisors (40).

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 7 ways as a sum of consecutive naturals, for example, 89109 + ... + 89588.

Almost surely, 2^42887280 is an apocalyptic number.

42887280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42887280 is an abundant number, since it is smaller than the sum of its proper divisors (90064032).

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

42887280 is a wasteful number, since it uses less digits than its factorization.

42887280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178713 (or 178707 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 39.

The square root of 42887280 is about 6548.8380648784. The cubic root of 42887280 is about 350.0334117763.

The spelling of 42887280 in words is "forty-two million, eight hundred eighty-seven thousand, two hundred eighty".