44521316400 has 240 divisors, whose sum is σ = 155903414400. Its totient is φ = 10770739200.

The previous prime is 44521316339. The next prime is 44521316417. The reversal of 44521316400 is 461312544.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×44521316400² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6900376 + ... + 6906824.

It is an arithmetic number, because the mean of its divisors is an integer number (649597560).

Almost surely, 2^44521316400 is an apocalyptic number.

44521316400 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 44521316400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77951707200).

44521316400 is an abundant number, since it is smaller than the sum of its proper divisors (111382098000).

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

44521316400 is a wasteful number, since it uses less digits than its factorization.

44521316400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7004 (or 6993 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 44521316400 its reverse (461312544), we get a palindrome (44982628944).

The spelling of 44521316400 in words is "forty-four billion, five hundred twenty-one million, three hundred sixteen thousand, four hundred".