44356221 has 48 divisors (see below), whose sum is σ = 82353600. Its totient is φ = 23387616.

The previous prime is 44356199. The next prime is 44356223. The reversal of 44356221 is 12265344.

44356221 is a `hidden beast` number, since 4 + 4 + 35 + 622 + 1 = 666.

It is not a de Polignac number, because 44356221 - 2⁵ = 44356189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44356223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15910 + ... + 18488.

It is an arithmetic number, because the mean of its divisors is an integer number (1715700).

Almost surely, 2^44356221 is an apocalyptic number.

It is an amenable number.

44356221 is a deficient number, since it is larger than the sum of its proper divisors (37997379).

44356221 is a wasteful number, since it uses less digits than its factorization.

44356221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2615 (or 2602 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 44356221 is about 6660.0466214584. The cubic root of 44356221 is about 353.9849893089.

The spelling of 44356221 in words is "forty-four million, three hundred fifty-six thousand, two hundred twenty-one".