42456266 has 4 divisors (see below), whose sum is σ = 63684402. Its totient is φ = 21228132.

The previous prime is 42456251. The next prime is 42456269. The reversal of 42456266 is 66265424.

42456266 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 23280625 + 19175641 = 4825^2 + 4379^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42456269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10614065 + ... + 10614068.

Almost surely, 2^42456266 is an apocalyptic number.

42456266 is a deficient number, since it is larger than the sum of its proper divisors (21228136).

42456266 is a wasteful number, since it uses less digits than its factorization.

42456266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21228135.

The product of its digits is 69120, while the sum is 35.

The square root of 42456266 is about 6515.8472971671. The cubic root of 42456266 is about 348.8568581822.

The spelling of 42456266 in words is "forty-two million, four hundred fifty-six thousand, two hundred sixty-six".