42709056 has 112 divisors (see below), whose sum is σ = 123919488. Its totient is φ = 12902400.

The previous prime is 42709039. The next prime is 42709067. The reversal of 42709056 is 65090724.

It is a super-2 number, since 2×42709056² = 3648126928822272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177096 + ... + 177336.

It is an arithmetic number, because the mean of its divisors is an integer number (1106424).

Almost surely, 2^42709056 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 42709056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61959744).

42709056 is an abundant number, since it is smaller than the sum of its proper divisors (81210432).

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

42709056 is a wasteful number, since it uses less digits than its factorization.

42709056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 42709056 is about 6535.2165993179. The cubic root of 42709056 is about 349.5478678852.

The spelling of 42709056 in words is "forty-two million, seven hundred nine thousand, fifty-six".