442106656 has 24 divisors (see below), whose sum is σ = 870865884. Its totient is φ = 220934400.

The previous prime is 442106633. The next prime is 442106657. The reversal of 442106656 is 656601244.

It can be written as a sum of positive squares in 2 ways, for example, as 441840400 + 266256 = 21020^2 + 516^2 .

It is not an unprimeable number, because it can be changed into a prime (442106657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116566 + ... + 120298.

Almost surely, 2^442106656 is an apocalyptic number.

It is an amenable number.

442106656 is a deficient number, since it is larger than the sum of its proper divisors (428759228).

442106656 is a wasteful number, since it uses less digits than its factorization.

442106656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7444 (or 7436 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 442106656 is about 21026.3324429155. The cubic root of 442106656 is about 761.8024255667.

The spelling of 442106656 in words is "four hundred forty-two million, one hundred six thousand, six hundred fifty-six".