442041432 has 64 divisors (see below), whose sum is σ = 1306540800. Its totient is φ = 121941120.

The previous prime is 442041401. The next prime is 442041433. The reversal of 442041432 is 234140244.

It is a happy number.

It is a super-2 number, since 2×442041432² = 390801255209221248, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442041433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40494 + ... + 50237.

It is an arithmetic number, because the mean of its divisors is an integer number (20414700).

Almost surely, 2^442041432 is an apocalyptic number.

442041432 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

442041432 is an abundant number, since it is smaller than the sum of its proper divisors (864499368).

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

442041432 is a wasteful number, since it uses less digits than its factorization.

442041432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90776 (or 90772 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 442041432 is about 21024.7813781737. The cubic root of 442041432 is about 761.7649608174.

Adding to 442041432 its reverse (234140244), we get a palindrome (676181676).

The spelling of 442041432 in words is "four hundred forty-two million, forty-one thousand, four hundred thirty-two".