42856722 has 32 divisors (see below), whose sum is σ = 98524800. Its totient is φ = 13792464.

The previous prime is 42856691. The next prime is 42856727. The reversal of 42856722 is 22765824.

It is not an unprimeable number, because it can be changed into a prime (42856727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12118 + ... + 15249.

It is an arithmetic number, because the mean of its divisors is an integer number (3078900).

Almost surely, 2^42856722 is an apocalyptic number.

42856722 is an abundant number, since it is smaller than the sum of its proper divisors (55668078).

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

42856722 is a wasteful number, since it uses less digits than its factorization.

42856722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27407 (or 27401 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 42856722 is about 6546.5045635056. The cubic root of 42856722 is about 349.9502568763.

The spelling of 42856722 in words is "forty-two million, eight hundred fifty-six thousand, seven hundred twenty-two".