944271221 has 8 divisors (see below), whose sum is σ = 959846040. Its totient is φ = 928806912.

The previous prime is 944271217. The next prime is 944271227. The reversal of 944271221 is 122172449.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2640625 + 941630596 = 1625^2 + 30686^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 944271221 - 2² = 944271217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (944271227) 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, 10310 + ... + 44663.

It is an arithmetic number, because the mean of its divisors is an integer number (119980755).

Almost surely, 2^944271221 is an apocalyptic number.

It is an amenable number.

944271221 is a deficient number, since it is larger than the sum of its proper divisors (15574819).

944271221 is a wasteful number, since it uses less digits than its factorization.

944271221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55255.

The product of its digits is 8064, while the sum is 32.

The square root of 944271221 is about 30728.9964203194. The cubic root of 944271221 is about 981.0675652777.

The spelling of 944271221 in words is "nine hundred forty-four million, two hundred seventy-one thousand, two hundred twenty-one".