440202142100 has 144 divisors (see below), whose sum is σ = 1134104079360. Its totient is φ = 145126425600.

The previous prime is 440202142091. The next prime is 440202142103. The reversal of 440202142100 is 1241202044.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440202142103) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3342296 + ... + 3471504.

Almost surely, 2^440202142100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 440202142100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (567052039680).

440202142100 is an abundant number, since it is smaller than the sum of its proper divisors (693901937260).

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

440202142100 is a wasteful number, since it uses less digits than its factorization.

440202142100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129418 (or 129411 counting only the distinct ones).

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

Adding to 440202142100 its reverse (1241202044), we get a palindrome (441443344144).

The spelling of 440202142100 in words is "four hundred forty billion, two hundred two million, one hundred forty-two thousand, one hundred".