44485399280 has 320 divisors, whose sum is σ = 124944384000. Its totient is φ = 14411105280.

The previous prime is 44485399241. The next prime is 44485399289. The reversal of 44485399280 is 8299358444.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44485399289) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 223544621 + ... + 223544819.

It is an arithmetic number, because the mean of its divisors is an integer number (390451200).

Almost surely, 2^44485399280 is an apocalyptic number.

44485399280 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 44485399280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62472192000).

44485399280 is an abundant number, since it is smaller than the sum of its proper divisors (80458984720).

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

44485399280 is a wasteful number, since it uses less digits than its factorization.

44485399280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492 (or 486 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 56.

The spelling of 44485399280 in words is "forty-four billion, four hundred eighty-five million, three hundred ninety-nine thousand, two hundred eighty".