9493220638 has 16 divisors (see below), whose sum is σ = 15694512624. Its totient is φ = 4270613760.

The previous prime is 9493220617. The next prime is 9493220657. The reversal of 9493220638 is 8360223949.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2222145 + ... + 2226412.

It is an arithmetic number, because the mean of its divisors is an integer number (980907039).

Almost surely, 2^9493220638 is an apocalyptic number.

9493220638 is a deficient number, since it is larger than the sum of its proper divisors (6201291986).

9493220638 is a wasteful number, since it uses less digits than its factorization.

9493220638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4448667.

The product of its (nonzero) digits is 559872, while the sum is 46.

The square root of 9493220638 is about 97433.1598481749. The cubic root of 9493220638 is about 2117.4078795846.

The spelling of 9493220638 in words is "nine billion, four hundred ninety-three million, two hundred twenty thousand, six hundred thirty-eight".