42685056 has 160 divisors (see below), whose sum is σ = 133293600. Its totient is φ = 13533696.

The previous prime is 42685037. The next prime is 42685067. The reversal of 42685056 is 65058624.

It is a super-3 number, since 3×42685056³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 42685056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 238375 + ... + 238553.

It is an arithmetic number, because the mean of its divisors is an integer number (833085).

Almost surely, 2^42685056 is an apocalyptic number.

42685056 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42685056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66646800).

42685056 is an abundant number, since it is smaller than the sum of its proper divisors (90608544).

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

42685056 is a wasteful number, since it uses less digits than its factorization.

42685056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 42685056 is about 6533.3801358868. The cubic root of 42685056 is about 349.4823804413.

The spelling of 42685056 in words is "forty-two million, six hundred eighty-five thousand, fifty-six".