442564434 has 48 divisors (see below), whose sum is σ = 1093404312. Its totient is φ = 128162304.

The previous prime is 442564429. The next prime is 442564439. The reversal of 442564434 is 434465244.

442564434 is a `hidden beast` number, since 4 + 4 + 2 + 5 + 644 + 3 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (442564429) and next prime (442564439).

It can be written as a sum of positive squares in 4 ways, for example, as 401000625 + 41563809 = 20025^2 + 6447^2 .

It is not an unprimeable number, because it can be changed into a prime (442564439) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51649 + ... + 59604.

Almost surely, 2^442564434 is an apocalyptic number.

442564434 is an abundant number, since it is smaller than the sum of its proper divisors (650839878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442564434 is a wasteful number, since it uses less digits than its factorization.

442564434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111291 (or 111288 counting only the distinct ones).

The product of its digits is 184320, while the sum is 36.

The square root of 442564434 is about 21037.2154526211. The cubic root of 442564434 is about 762.0652702062.

The spelling of 442564434 in words is "four hundred forty-two million, five hundred sixty-four thousand, four hundred thirty-four".