42873128 has 16 divisors (see below), whose sum is σ = 80921760. Its totient is φ = 21294000.

The previous prime is 42873113. The next prime is 42873203. The reversal of 42873128 is 82137824.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

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, 16538 + ... + 18953.

It is an arithmetic number, because the mean of its divisors is an integer number (5057610).

Almost surely, 2^42873128 is an apocalyptic number.

It is an amenable number.

42873128 is a deficient number, since it is larger than the sum of its proper divisors (38048632).

42873128 is a wasteful number, since it uses less digits than its factorization.

42873128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35648 (or 35644 counting only the distinct ones).

The product of its digits is 21504, while the sum is 35.

The square root of 42873128 is about 6547.7574787098. The cubic root of 42873128 is about 349.9949060483.

The spelling of 42873128 in words is "forty-two million, eight hundred seventy-three thousand, one hundred twenty-eight".