442021107 has 32 divisors (see below), whose sum is σ = 676578816. Its totient is φ = 256190880.

The previous prime is 442021093. The next prime is 442021109. The reversal of 442021107 is 701120244.

It is a happy number.

It is not a de Polignac number, because 442021107 - 2¹⁰ = 442020083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (442021109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89433 + ... + 94245.

It is an arithmetic number, because the mean of its divisors is an integer number (21143088).

Almost surely, 2^442021107 is an apocalyptic number.

442021107 is a deficient number, since it is larger than the sum of its proper divisors (234557709).

442021107 is a wasteful number, since it uses less digits than its factorization.

442021107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4872 (or 4850 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 442021107 is about 21024.2980144403. The cubic root of 442021107 is about 761.7532853582.

The spelling of 442021107 in words is "four hundred forty-two million, twenty-one thousand, one hundred seven".