42856570 has 16 divisors (see below), whose sum is σ = 79630848. Its totient is φ = 16589520.

The previous prime is 42856553. The next prime is 42856579. The reversal of 42856570 is 7565824.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (42856579) 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, 68814 + ... + 69433.

It is an arithmetic number, because the mean of its divisors is an integer number (4976928).

Almost surely, 2^42856570 is an apocalyptic number.

42856570 is a deficient number, since it is larger than the sum of its proper divisors (36774278).

42856570 is a wasteful number, since it uses less digits than its factorization.

42856570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138285.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 42856570 is about 6546.4929542466. The cubic root of 42856570 is about 349.9498431527.

The spelling of 42856570 in words is "forty-two million, eight hundred fifty-six thousand, five hundred seventy".