42256670 has 16 divisors (see below), whose sum is σ = 76645008. Its totient is φ = 16773120.

The previous prime is 42256667. The next prime is 42256693. The reversal of 42256670 is 7665224.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 14819 + ... + 17438.

It is an arithmetic number, because the mean of its divisors is an integer number (4790313).

Almost surely, 2^42256670 is an apocalyptic number.

42256670 is a deficient number, since it is larger than the sum of its proper divisors (34388338).

42256670 is a wasteful number, since it uses less digits than its factorization.

42256670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32395.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 42256670 is about 6500.5130566748. The cubic root of 42256670 is about 348.3093156419.

The spelling of 42256670 in words is "forty-two million, two hundred fifty-six thousand, six hundred seventy".