42845634 has 48 divisors (see below), whose sum is σ = 100481472. Its totient is φ = 13116384.

The previous prime is 42845617. The next prime is 42845651. The reversal of 42845634 is 43654824.

It is an interprime number because it is at equal distance from previous prime (42845617) and next prime (42845651).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65899 + ... + 66545.

It is an arithmetic number, because the mean of its divisors is an integer number (2093364).

Almost surely, 2^42845634 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42845634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50240736).

42845634 is an abundant number, since it is smaller than the sum of its proper divisors (57635838).

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

42845634 is a wasteful number, since it uses less digits than its factorization.

42845634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951 (or 948 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

The square root of 42845634 is about 6545.6576445763. The cubic root of 42845634 is about 349.9200742666.

The spelling of 42845634 in words is "forty-two million, eight hundred forty-five thousand, six hundred thirty-four".