9343440221 has 4 divisors (see below), whose sum is σ = 9384241500. Its totient is φ = 9302638944.

The previous prime is 9343440217. The next prime is 9343440229. The reversal of 9343440221 is 1220443439.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6418252996 + 2925187225 = 80114^2 + 54085^2 .

It is a cyclic number.

It is not a de Polignac number, because 9343440221 - 2² = 9343440217 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 (9343440229) 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, 20400296 + ... + 20400753.

It is an arithmetic number, because the mean of its divisors is an integer number (2346060375).

Almost surely, 2^9343440221 is an apocalyptic number.

It is an amenable number.

9343440221 is a deficient number, since it is larger than the sum of its proper divisors (40801279).

9343440221 is a wasteful number, since it uses less digits than its factorization.

9343440221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40801278.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 9343440221 is about 96661.4722679103. The cubic root of 9343440221 is about 2106.2129100226.

The spelling of 9343440221 in words is "nine billion, three hundred forty-three million, four hundred forty thousand, two hundred twenty-one".