9940201 has 4 divisors (see below), whose sum is σ = 9946692. Its totient is φ = 9933712.

The previous prime is 9940199. The next prime is 9940219. The reversal of 9940201 is 1020499.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1020499 = 829 ⋅1231.

It can be written as a sum of positive squares in 2 ways, for example, as 6786025 + 3154176 = 2605^2 + 1776^2 .

It is a cyclic number.

It is not a de Polignac number, because 9940201 - 2¹ = 9940199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9940241) 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, 471 + ... + 4483.

It is an arithmetic number, because the mean of its divisors is an integer number (2486673).

Almost surely, 2^9940201 is an apocalyptic number.

It is an amenable number.

9940201 is a deficient number, since it is larger than the sum of its proper divisors (6491).

9940201 is a wasteful number, since it uses less digits than its factorization.

9940201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6490.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 9940201 is about 3152.8084305901. The cubic root of 9940201 is about 215.0131666716.

The spelling of 9940201 in words is "nine million, nine hundred forty thousand, two hundred one".