442252106 has 16 divisors (see below), whose sum is σ = 667283400. Its totient is φ = 219828480.

The previous prime is 442252103. The next prime is 442252123. The reversal of 442252106 is 601252244.

It can be written as a sum of positive squares in 4 ways, for example, as 258405625 + 183846481 = 16075^2 + 13559^2 .

It is a super-2 number, since 2×442252106² = 391173850522870472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (442252103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421070 + ... + 422118.

Almost surely, 2^442252106 is an apocalyptic number.

442252106 is a deficient number, since it is larger than the sum of its proper divisors (225031294).

442252106 is a wasteful number, since it uses less digits than its factorization.

442252106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2089.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 442252106 is about 21029.7909166972. The cubic root of 442252106 is about 761.8859589647.

The spelling of 442252106 in words is "four hundred forty-two million, two hundred fifty-two thousand, one hundred six".