944295221 has 4 divisors (see below), whose sum is σ = 945536844. Its totient is φ = 943053600.

The previous prime is 944295217. The next prime is 944295227. The reversal of 944295221 is 122592449.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 122592449 = 7 ⋅17513207.

It can be written as a sum of positive squares in 2 ways, for example, as 139948900 + 804346321 = 11830^2 + 28361^2 .

It is a cyclic number.

It is not a de Polignac number, because 944295221 - 2² = 944295217 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 (944295227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 619670 + ... + 621191.

It is an arithmetic number, because the mean of its divisors is an integer number (236384211).

Almost surely, 2^944295221 is an apocalyptic number.

It is an amenable number.

944295221 is a deficient number, since it is larger than the sum of its proper divisors (1241623).

944295221 is a wasteful number, since it uses less digits than its factorization.

944295221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241622.

The product of its digits is 51840, while the sum is 38.

The square root of 944295221 is about 30729.3869284761. The cubic root of 944295221 is about 981.0758769512.

The spelling of 944295221 in words is "nine hundred forty-four million, two hundred ninety-five thousand, two hundred twenty-one".