44224821 has 12 divisors (see below), whose sum is σ = 64164672. Its totient is φ = 29351976.

The previous prime is 44224819. The next prime is 44224823. The reversal of 44224821 is 12842244.

It is an interprime number because it is at equal distance from previous prime (44224819) and next prime (44224823).

It is not a de Polignac number, because 44224821 - 2¹ = 44224819 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44224823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8781 + ... + 12866.

It is an arithmetic number, because the mean of its divisors is an integer number (5347056).

Almost surely, 2^44224821 is an apocalyptic number.

It is an amenable number.

44224821 is a deficient number, since it is larger than the sum of its proper divisors (19939851).

44224821 is a wasteful number, since it uses less digits than its factorization.

44224821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21880 (or 21877 counting only the distinct ones).

The product of its digits is 4096, while the sum is 27.

The square root of 44224821 is about 6650.1745089885. The cubic root of 44224821 is about 353.6350975114.

The spelling of 44224821 in words is "forty-four million, two hundred twenty-four thousand, eight hundred twenty-one".