42130056 has 32 divisors (see below), whose sum is σ = 105487200. Its totient is φ = 14021760.

The previous prime is 42130021. The next prime is 42130061. The reversal of 42130056 is 65003124.

It is a happy 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, 25380 + ... + 26988.

It is an arithmetic number, because the mean of its divisors is an integer number (3296475).

Almost surely, 2^42130056 is an apocalyptic number.

It is an amenable number.

42130056 is an abundant number, since it is smaller than the sum of its proper divisors (63357144).

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

42130056 is a wasteful number, since it uses less digits than its factorization.

42130056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2709 (or 2705 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 42130056 is about 6490.7669808737. The cubic root of 42130056 is about 347.9610869424.

The spelling of 42130056 in words is "forty-two million, one hundred thirty thousand, fifty-six".