42856964 has 12 divisors (see below), whose sum is σ = 75224604. Its totient is φ = 21364224.

The previous prime is 42856963. The next prime is 42856987. The reversal of 42856964 is 46965824.

It can be written as a sum of positive squares in 2 ways, for example, as 21696964 + 21160000 = 4658^2 + 4600^2 .

It is not an unprimeable number, because it can be changed into a prime (42856963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14549 + ... + 17244.

It is an arithmetic number, because the mean of its divisors is an integer number (6268717).

Almost surely, 2^42856964 is an apocalyptic number.

It is an amenable number.

42856964 is a deficient number, since it is larger than the sum of its proper divisors (32367640).

42856964 is a wasteful number, since it uses less digits than its factorization.

42856964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32134 (or 32132 counting only the distinct ones).

The product of its digits is 414720, while the sum is 44.

The square root of 42856964 is about 6546.5230466256. The cubic root of 42856964 is about 349.9509155656.

The spelling of 42856964 in words is "forty-two million, eight hundred fifty-six thousand, nine hundred sixty-four".