440444040400 has 120 divisors (see below), whose sum is σ = 1302359254784. Its totient is φ = 139393267200.

The previous prime is 440444040397. The next prime is 440444040451. The reversal of 440444040400 is 4040444044.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6013656 + ... + 6086455.

Almost surely, 2^440444040400 is an apocalyptic number.

440444040400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

440444040400 is an abundant number, since it is smaller than the sum of its proper divisors (861915214384).

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

440444040400 is a wasteful number, since it uses less digits than its factorization.

440444040400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12100149 (or 12100138 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 440444040400 its reverse (4040444044), we get a palindrome (444484484444).

The spelling of 440444040400 in words is "four hundred forty billion, four hundred forty-four million, forty thousand, four hundred".