42888140 has 12 divisors (see below), whose sum is σ = 90065136. Its totient is φ = 17155248.

The previous prime is 42888137. The next prime is 42888151. The reversal of 42888140 is 4188824.

It is a self number, because there is not a number n which added to its sum of digits gives 42888140.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1072184 + ... + 1072223.

It is an arithmetic number, because the mean of its divisors is an integer number (7505428).

Almost surely, 2^42888140 is an apocalyptic number.

It is an amenable number.

42888140 is an abundant number, since it is smaller than the sum of its proper divisors (47176996).

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

42888140 is a wasteful number, since it uses less digits than its factorization.

42888140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2144416 (or 2144414 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 35.

The square root of 42888140 is about 6548.9037250520. The cubic root of 42888140 is about 350.0357514500.

The spelling of 42888140 in words is "forty-two million, eight hundred eighty-eight thousand, one hundred forty".