13410021 has 8 divisors (see below), whose sum is σ = 18363424. Its totient is φ = 8698320.

The previous prime is 13409969. The next prime is 13410031. The reversal of 13410021 is 12001431.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13410021 - 2¹⁷ = 13278949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13409979 and 13410006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13410031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60295 + ... + 60516.

It is an arithmetic number, because the mean of its divisors is an integer number (2295428).

Almost surely, 2^13410021 is an apocalyptic number.

It is an amenable number.

13410021 is a deficient number, since it is larger than the sum of its proper divisors (4953403).

13410021 is a wasteful number, since it uses less digits than its factorization.

13410021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120851.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 13410021 is about 3661.9695520307. The cubic root of 13410021 is about 237.5799679004.

Adding to 13410021 its reverse (12001431), we get a palindrome (25411452).

The spelling of 13410021 in words is "thirteen million, four hundred ten thousand, twenty-one".