42845670 has 96 divisors (see below), whose sum is σ = 130111488. Its totient is φ = 9578304.

The previous prime is 42845669. The next prime is 42845701. The reversal of 42845670 is 7654824.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28887 + ... + 30333.

It is an arithmetic number, because the mean of its divisors is an integer number (1355328).

Almost surely, 2^42845670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42845670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65055744).

42845670 is an abundant number, since it is smaller than the sum of its proper divisors (87265818).

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

42845670 is a wasteful number, since it uses less digits than its factorization.

42845670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514 (or 1511 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 42845670 is about 6545.6603944904. The cubic root of 42845670 is about 349.9201722705.

The spelling of 42845670 in words is "forty-two million, eight hundred forty-five thousand, six hundred seventy".