10260421 has 4 divisors (see below), whose sum is σ = 10325932. Its totient is φ = 10194912.

The previous prime is 10260413. The next prime is 10260449. The reversal of 10260421 is 12406201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12406201 = 2837 ⋅4373.

It can be written as a sum of positive squares in 2 ways, for example, as 6320196 + 3940225 = 2514^2 + 1985^2 .

It is a cyclic number.

It is not a de Polignac number, because 10260421 - 2³ = 10260413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10260395 and 10260404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10260491) 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 3 ways as a sum of consecutive naturals, for example, 32520 + ... + 32833.

It is an arithmetic number, because the mean of its divisors is an integer number (2581483).

Almost surely, 2^10260421 is an apocalyptic number.

It is an amenable number.

10260421 is a deficient number, since it is larger than the sum of its proper divisors (65511).

10260421 is an equidigital number, since it uses as much as digits as its factorization.

10260421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65510.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 10260421 is about 3203.1891920397. The cubic root of 10260421 is about 217.2976653570.

Adding to 10260421 its reverse (12406201), we get a palindrome (22666622).

The spelling of 10260421 in words is "ten million, two hundred sixty thousand, four hundred twenty-one".