42657064 has 16 divisors (see below), whose sum is σ = 80183700. Its totient is φ = 21274752.

The previous prime is 42657049. The next prime is 42657073. The reversal of 42657064 is 46075624.

It can be written as a sum of positive squares in 2 ways, for example, as 38068900 + 4588164 = 6170^2 + 2142^2 .

It is an unprimeable number.

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, 3247 + ... + 9790.

Almost surely, 2^42657064 is an apocalyptic number.

It is an amenable number.

42657064 is a deficient number, since it is larger than the sum of its proper divisors (37526636).

42657064 is a wasteful number, since it uses less digits than its factorization.

42657064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13452 (or 13448 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 42657064 is about 6531.2375550121. The cubic root of 42657064 is about 349.4059692338.

The spelling of 42657064 in words is "forty-two million, six hundred fifty-seven thousand, sixty-four".