44145221232 has 80 divisors (see below), whose sum is σ = 134827799040. Its totient is φ = 12177989376.

The previous prime is 44145221231. The next prime is 44145221249. The reversal of 44145221232 is 23212254144.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 44145221232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44145221231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2255508 + ... + 2274995.

It is an arithmetic number, because the mean of its divisors is an integer number (1685347488).

Almost surely, 2^44145221232 is an apocalyptic number.

44145221232 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

44145221232 is an abundant number, since it is smaller than the sum of its proper divisors (90682577808).

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

44145221232 is a wasteful number, since it uses less digits than its factorization.

44145221232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4530550 (or 4530544 counting only the distinct ones).

The product of its digits is 15360, while the sum is 30.

Adding to 44145221232 its reverse (23212254144), we get a palindrome (67357475376).

The spelling of 44145221232 in words is "forty-four billion, one hundred forty-five million, two hundred twenty-one thousand, two hundred thirty-two".