42712028 has 6 divisors (see below), whose sum is σ = 74746056. Its totient is φ = 21356012.

The previous prime is 42712013. The next prime is 42712063. The reversal of 42712028 is 82021724.

42712028 is nontrivially palindromic in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 42711988 and 42712006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5339000 + ... + 5339007.

It is an arithmetic number, because the mean of its divisors is an integer number (12457676).

Almost surely, 2^42712028 is an apocalyptic number.

It is an amenable number.

42712028 is a deficient number, since it is larger than the sum of its proper divisors (32034028).

42712028 is a wasteful number, since it uses less digits than its factorization.

42712028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10678011 (or 10678009 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 42712028 is about 6535.4439787975. The cubic root of 42712028 is about 349.5559757064. Note that the first 3 decimals are identical.

The spelling of 42712028 in words is "forty-two million, seven hundred twelve thousand, twenty-eight".