42128852 has 24 divisors (see below), whose sum is σ = 79077600. Its totient is φ = 19577376.

The previous prime is 42128831. The next prime is 42128869. The reversal of 42128852 is 25882124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1202 + ... + 9257.

It is an arithmetic number, because the mean of its divisors is an integer number (3294900).

Almost surely, 2^42128852 is an apocalyptic number.

It is an amenable number.

42128852 is a deficient number, since it is larger than the sum of its proper divisors (36948748).

42128852 is a wasteful number, since it uses less digits than its factorization.

42128852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10535 (or 10533 counting only the distinct ones).

The product of its digits is 10240, while the sum is 32.

The square root of 42128852 is about 6490.6742330824. The cubic root of 42128852 is about 347.9577722135.

The spelling of 42128852 in words is "forty-two million, one hundred twenty-eight thousand, eight hundred fifty-two".