13038421 has 8 divisors (see below), whose sum is σ = 14270688. Its totient is φ = 11814000.

The previous prime is 13038407. The next prime is 13038437. The reversal of 13038421 is 12483031.

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

It is not a de Polignac number, because 13038421 - 2⁷ = 13038293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13038392 and 13038401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13038481) 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, 1851 + ... + 5431.

It is an arithmetic number, because the mean of its divisors is an integer number (1783836).

Almost surely, 2^13038421 is an apocalyptic number.

13038421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13038421 is a deficient number, since it is larger than the sum of its proper divisors (1232267).

13038421 is a wasteful number, since it uses less digits than its factorization.

13038421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3923.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 13038421 is about 3610.8753786305. The cubic root of 13038421 is about 235.3648835835.

The spelling of 13038421 in words is "thirteen million, thirty-eight thousand, four hundred twenty-one".