442041440 has 24 divisors (see below), whose sum is σ = 1044323280. Its totient is φ = 176816512.

The previous prime is 442041437. The next prime is 442041443. The reversal of 442041440 is 44140244.

It is an interprime number because it is at equal distance from previous prime (442041437) and next prime (442041443).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442041443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1381220 + ... + 1381539.

It is an arithmetic number, because the mean of its divisors is an integer number (43513470).

Almost surely, 2^442041440 is an apocalyptic number.

442041440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

442041440 is an abundant number, since it is smaller than the sum of its proper divisors (602281840).

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

442041440 is a wasteful number, since it uses less digits than its factorization.

442041440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2762774 (or 2762766 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 442041440 is about 21024.7815684254. The cubic root of 442041440 is about 761.7649654128.

Adding to 442041440 its reverse (44140244), we get a palindrome (486181684).

The spelling of 442041440 in words is "four hundred forty-two million, forty-one thousand, four hundred forty".