44421524 has 24 divisors (see below), whose sum is σ = 89130048. Its totient is φ = 18976320.

The previous prime is 44421523. The next prime is 44421529. The reversal of 44421524 is 42512444.

It is a junction number, because it is equal to n+sod(n) for n = 44421493 and 44421502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44421523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6872 + ... + 11664.

It is an arithmetic number, because the mean of its divisors is an integer number (3713752).

Almost surely, 2^44421524 is an apocalyptic number.

It is an amenable number.

44421524 is an abundant number, since it is smaller than the sum of its proper divisors (44708524).

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

44421524 is a wasteful number, since it uses less digits than its factorization.

44421524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5135 (or 5133 counting only the distinct ones).

The product of its digits is 5120, while the sum is 26.

The square root of 44421524 is about 6664.9474116455. The cubic root of 44421524 is about 354.1586210737.

Adding to 44421524 its reverse (42512444), we get a palindrome (86933968).

The spelling of 44421524 in words is "forty-four million, four hundred twenty-one thousand, five hundred twenty-four".