42130028 has 12 divisors (see below), whose sum is σ = 73774680. Its totient is φ = 21051552.

The previous prime is 42130021. The next prime is 42130061. The reversal of 42130028 is 82003124.

It is a junction number, because it is equal to n+sod(n) for n = 42129991 and 42130009.

It is not an unprimeable number, because it can be changed into a prime (42130021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7763 + ... + 12021.

It is an arithmetic number, because the mean of its divisors is an integer number (6147890).

Almost surely, 2^42130028 is an apocalyptic number.

It is an amenable number.

42130028 is a deficient number, since it is larger than the sum of its proper divisors (31644652).

42130028 is a wasteful number, since it uses less digits than its factorization.

42130028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6736 (or 6734 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 42130028 is about 6490.7648239634. The cubic root of 42130028 is about 347.9610098564.

The spelling of 42130028 in words is "forty-two million, one hundred thirty thousand, twenty-eight".