442564092 has 18 divisors (see below), whose sum is σ = 1118703768. Its totient is φ = 147521352.

The previous prime is 442564069. The next prime is 442564097. The reversal of 442564092 is 290465244.

442564092 is a `hidden beast` number, since 4 + 4 + 2 + 5 + 640 + 9 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 12293447 = 442564092 / (4 + 4 + 2 + 5 + 6 + 4 + 0 + 9 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442564097) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6146688 + ... + 6146759.

Almost surely, 2^442564092 is an apocalyptic number.

It is an amenable number.

442564092 is an abundant number, since it is smaller than the sum of its proper divisors (676139676).

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

442564092 is a wasteful number, since it uses less digits than its factorization.

442564092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12293457 (or 12293452 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 442564092 is about 21037.2073241673. The cubic root of 442564092 is about 762.0650739061.

The spelling of 442564092 in words is "four hundred forty-two million, five hundred sixty-four thousand, ninety-two".