44421552 has 120 divisors (see below), whose sum is σ = 143609856. Its totient is φ = 12555648.

The previous prime is 44421551. The next prime is 44421569. The reversal of 44421552 is 25512444.

44421552 is a `hidden beast` number, since 444 + 215 + 5 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44421551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127843 + ... + 128189.

Almost surely, 2^44421552 is an apocalyptic number.

44421552 is a gapful number since it is divisible by the number (42) 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 44421552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71804928).

44421552 is an abundant number, since it is smaller than the sum of its proper divisors (99188304).

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

44421552 is a wasteful number, since it uses less digits than its factorization.

44421552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495 (or 486 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 44421552 is about 6664.9495121869. The cubic root of 44421552 is about 354.1586954853.

Adding to 44421552 its reverse (25512444), we get a palindrome (69933996).

The spelling of 44421552 in words is "forty-four million, four hundred twenty-one thousand, five hundred fifty-two".