13722419 has 4 divisors (see below), whose sum is σ = 13738944. Its totient is φ = 13705896.

The previous prime is 13722409. The next prime is 13722431. The reversal of 13722419 is 91422731.

13722419 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91422731 = 1283 ⋅71257.

It is a cyclic number.

It is not a de Polignac number, because 13722419 - 2⁴ = 13722403 is a prime.

It is a super-2 number, since 2×13722419² = 376609566423122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13722391 and 13722400.

It is not an unprimeable number, because it can be changed into a prime (13722409) 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, 6947 + ... + 8700.

It is an arithmetic number, because the mean of its divisors is an integer number (3434736).

Almost surely, 2^13722419 is an apocalyptic number.

13722419 is a deficient number, since it is larger than the sum of its proper divisors (16525).

13722419 is an equidigital number, since it uses as much as digits as its factorization.

13722419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16524.

The product of its digits is 3024, while the sum is 29.

The square root of 13722419 is about 3704.3783554059. The cubic root of 13722419 is about 239.4107012039.

It can be divided in two parts, 13722 and 419, that added together give a palindrome (14141).

The spelling of 13722419 in words is "thirteen million, seven hundred twenty-two thousand, four hundred nineteen".