442215250000 has 140 divisors (see below), whose sum is σ = 1117555070112. Its totient is φ = 169193200000.

The previous prime is 442215249997. The next prime is 442215250019. The reversal of 442215250000 is 52512244.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 5711547 + ... + 5788453.

Almost surely, 2^442215250000 is an apocalyptic number.

442215250000 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 442215250000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (558777535056).

442215250000 is an abundant number, since it is smaller than the sum of its proper divisors (675339820112).

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

442215250000 is an frugal number, since it uses more digits than its factorization.

442215250000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76968 (or 76937 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

Adding to 442215250000 its reverse (52512244), we get a palindrome (442267762244).

The spelling of 442215250000 in words is "four hundred forty-two billion, two hundred fifteen million, two hundred fifty thousand".