440221142000 has 160 divisors (see below), whose sum is σ = 1102801749504. Its totient is φ = 169786368000.

The previous prime is 440221141993. The next prime is 440221142059. The reversal of 440221142000 is 241122044.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17161184 + ... + 17186816.

Almost surely, 2^440221142000 is an apocalyptic number.

440221142000 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 440221142000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (551400874752).

440221142000 is an abundant number, since it is smaller than the sum of its proper divisors (662580607504).

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

440221142000 is a wasteful number, since it uses less digits than its factorization.

440221142000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25964 (or 25948 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 440221142000 its reverse (241122044), we get a palindrome (440462264044).

The spelling of 440221142000 in words is "four hundred forty billion, two hundred twenty-one million, one hundred forty-two thousand".