442220140240 has 40 divisors (see below), whose sum is σ = 1033328505600. Its totient is φ = 175999165056.

The previous prime is 442220140211. The next prime is 442220140279. The reversal of 442220140240 is 42041022244.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13872904 + ... + 13904743.

It is an arithmetic number, because the mean of its divisors is an integer number (25833212640).

Almost surely, 2^442220140240 is an apocalyptic number.

442220140240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

442220140240 is an abundant number, since it is smaller than the sum of its proper divisors (591108365360).

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

442220140240 is a wasteful number, since it uses less digits than its factorization.

442220140240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27777859 (or 27777853 counting only the distinct ones).

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

Adding to 442220140240 its reverse (42041022244), we get a palindrome (484261162484).

The spelling of 442220140240 in words is "four hundred forty-two billion, two hundred twenty million, one hundred forty thousand, two hundred forty".