13824019 has 4 divisors (see below), whose sum is σ = 15080760. Its totient is φ = 12567280.

The previous prime is 13824017. The next prime is 13824023. The reversal of 13824019 is 91042831.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13824019 - 2¹ = 13824017 is a prime.

It is a super-2 number, since 2×13824019² = 382207002624722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13824017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 628354 + ... + 628375.

It is an arithmetic number, because the mean of its divisors is an integer number (3770190).

Almost surely, 2^13824019 is an apocalyptic number.

13824019 is a deficient number, since it is larger than the sum of its proper divisors (1256741).

13824019 is a wasteful number, since it uses less digits than its factorization.

13824019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256740.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 13824019 is about 3718.0665674514. The cubic root of 13824019 is about 240.0001099537. Note that the first 3 decimals are identical.

The spelling of 13824019 in words is "thirteen million, eight hundred twenty-four thousand, nineteen".