442200013240 has 64 divisors (see below), whose sum is σ = 1018546099200. Its totient is φ = 172703127168.

The previous prime is 442200013237. The next prime is 442200013273. The reversal of 442200013240 is 42310002244.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 507037 + ... + 1068403.

It is an arithmetic number, because the mean of its divisors is an integer number (15914782800).

Almost surely, 2^442200013240 is an apocalyptic number.

442200013240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 442200013240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (509273049600).

442200013240 is an abundant number, since it is smaller than the sum of its proper divisors (576346085960).

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

442200013240 is a wasteful number, since it uses less digits than its factorization.

442200013240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561844 (or 561840 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 442200013240 its reverse (42310002244), we get a palindrome (484510015484).

The spelling of 442200013240 in words is "four hundred forty-two billion, two hundred million, thirteen thousand, two hundred forty".