42597856 has 48 divisors (see below), whose sum is σ = 97826400. Its totient is φ = 18251520.

The previous prime is 42597851. The next prime is 42597871. The reversal of 42597856 is 65879524.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42597851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9036 + ... + 12916.

It is an arithmetic number, because the mean of its divisors is an integer number (2038050).

Almost surely, 2^42597856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42597856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48913200).

42597856 is an abundant number, since it is smaller than the sum of its proper divisors (55228544).

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

42597856 is an equidigital number, since it uses as much as digits as its factorization.

42597856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3912 (or 3890 counting only the distinct ones).

The product of its digits is 604800, while the sum is 46.

The square root of 42597856 is about 6526.7033025870. The cubic root of 42597856 is about 349.2442359002.

The spelling of 42597856 in words is "forty-two million, five hundred ninety-seven thousand, eight hundred fifty-six".