42867825 has 96 divisors (see below), whose sum is σ = 95327232. Its totient is φ = 16416000.

The previous prime is 42867821. The next prime is 42867827. The reversal of 42867825 is 52876824.

It is a happy number.

It is not a de Polignac number, because 42867825 - 2² = 42867821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42867821) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 74790 + ... + 75360.

It is an arithmetic number, because the mean of its divisors is an integer number (992992).

Almost surely, 2^42867825 is an apocalyptic number.

It is an amenable number.

42867825 is an abundant number, since it is smaller than the sum of its proper divisors (52459407).

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

42867825 is a wasteful number, since it uses less digits than its factorization.

42867825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615 (or 610 counting only the distinct ones).

The product of its digits is 215040, while the sum is 42.

The square root of 42867825 is about 6547.3525183848. The cubic root of 42867825 is about 349.9804751013.

The spelling of 42867825 in words is "forty-two million, eight hundred sixty-seven thousand, eight hundred twenty-five".