442441240 has 16 divisors (see below), whose sum is σ = 995492880. Its totient is φ = 176976480.

The previous prime is 442441231. The next prime is 442441243. The reversal of 442441240 is 42144244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442441243) 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, 5530476 + ... + 5530555.

It is an arithmetic number, because the mean of its divisors is an integer number (62218305).

Almost surely, 2^442441240 is an apocalyptic number.

442441240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

442441240 is an abundant number, since it is smaller than the sum of its proper divisors (553051640).

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

442441240 is a wasteful number, since it uses less digits than its factorization.

442441240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11061042 (or 11061038 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

The square root of 442441240 is about 21034.2872472542. The cubic root of 442441240 is about 761.9945531354.

Adding to 442441240 its reverse (42144244), we get a palindrome (484585484).

The spelling of 442441240 in words is "four hundred forty-two million, four hundred forty-one thousand, two hundred forty".