442042152 has 32 divisors (see below), whose sum is σ = 1153154880. Its totient is φ = 140940800.

The previous prime is 442042151. The next prime is 442042189. The reversal of 442042152 is 251240244.

It is a happy number.

It is a super-2 number, since 2×442042152² = 390802528289582208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (442042151) 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, 399849 + ... + 400952.

It is an arithmetic number, because the mean of its divisors is an integer number (36036090).

Almost surely, 2^442042152 is an apocalyptic number.

It is an amenable number.

442042152 is an abundant number, since it is smaller than the sum of its proper divisors (711112728).

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

442042152 is a wasteful number, since it uses less digits than its factorization.

442042152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800833 (or 800829 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 442042152 is about 21024.7985008180. The cubic root of 442042152 is about 761.7653744064.

Adding to 442042152 its reverse (251240244), we get a palindrome (693282396).

The spelling of 442042152 in words is "four hundred forty-two million, forty-two thousand, one hundred fifty-two".