8994458221 has 16 divisors (see below), whose sum is σ = 10531914624. Its totient is φ = 7520595264.

The previous prime is 8994458201. The next prime is 8994458237. The reversal of 8994458221 is 1228544998.

It is a happy number.

It is not a de Polignac number, because 8994458221 - 2¹⁷ = 8994327149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8994458201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221151 + ... + 258643.

It is an arithmetic number, because the mean of its divisors is an integer number (658244664).

Almost surely, 2^8994458221 is an apocalyptic number.

It is an amenable number.

8994458221 is a deficient number, since it is larger than the sum of its proper divisors (1537456403).

8994458221 is a wasteful number, since it uses less digits than its factorization.

8994458221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38340.

The product of its digits is 1658880, while the sum is 52.

The square root of 8994458221 is about 94839.1175675944. The cubic root of 8994458221 is about 2079.6567959533.

The spelling of 8994458221 in words is "eight billion, nine hundred ninety-four million, four hundred fifty-eight thousand, two hundred twenty-one".