13924481 has 4 divisors (see below), whose sum is σ = 13935552. Its totient is φ = 13913412.

The previous prime is 13924459. The next prime is 13924483. The reversal of 13924481 is 18442931.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 18442931 = 13 ⋅1418687.

It is a cyclic number.

It is not a de Polignac number, because 13924481 - 2¹⁰ = 13923457 is a prime.

It is a super-2 number, since 2×13924481² = 387782342238722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13924483) 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, 3365 + ... + 6258.

It is an arithmetic number, because the mean of its divisors is an integer number (3483888).

Almost surely, 2^13924481 is an apocalyptic number.

It is an amenable number.

13924481 is a deficient number, since it is larger than the sum of its proper divisors (11071).

13924481 is an equidigital number, since it uses as much as digits as its factorization.

13924481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11070.

The product of its digits is 6912, while the sum is 32.

The square root of 13924481 is about 3731.5520899486. The cubic root of 13924481 is about 240.5800840659.

The spelling of 13924481 in words is "thirteen million, nine hundred twenty-four thousand, four hundred eighty-one".