10201646 has 16 divisors (see below), whose sum is σ = 18834144. Its totient is φ = 4035744.

The previous prime is 10201643. The next prime is 10201663. The reversal of 10201646 is 64610201.

It is a happy number.

It is a super-2 number, since 2×10201646² = 208147162218632, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10201643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27845 + ... + 28208.

It is an arithmetic number, because the mean of its divisors is an integer number (1177134).

Almost surely, 2^10201646 is an apocalyptic number.

10201646 is a deficient number, since it is larger than the sum of its proper divisors (8632498).

10201646 is a wasteful number, since it uses less digits than its factorization.

10201646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56075.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 10201646 is about 3194.0015654348. The cubic root of 10201646 is about 216.8819535347.

Adding to 10201646 its reverse (64610201), we get a palindrome (74811847).

The spelling of 10201646 in words is "ten million, two hundred one thousand, six hundred forty-six".