43444404041220 has 288 divisors, whose sum is σ = 162264632974080. Its totient is φ = 9162211968000.

The previous prime is 43444404041177. The next prime is 43444404041321. The reversal of 43444404041220 is 2214040444434.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 36282246 + ... + 37460514.

Almost surely, 2^{43444404041220} 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 43444404041220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81132316487040).

43444404041220 is an abundant number, since it is smaller than the sum of its proper divisors (118820228932860).

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

43444404041220 is a wasteful number, since it uses less digits than its factorization.

43444404041220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180555 (or 1180550 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 36.

Adding to 43444404041220 its reverse (2214040444434), we get a palindrome (45658444485654).

The spelling of 43444404041220 in words is "forty-three trillion, four hundred forty-four billion, four hundred four million, forty-one thousand, two hundred twenty".