13404019 has 6 divisors (see below), whose sum is σ = 13600580. Its totient is φ = 13210260.

The previous prime is 13404011. The next prime is 13404029. The reversal of 13404019 is 91040431.

It is not a de Polignac number, because 13404019 - 2³ = 13404011 is a prime.

It is a super-2 number, since 2×13404019² = 359335450704722, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (13404011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3712 + ... + 6370.

Almost surely, 2^13404019 is an apocalyptic number.

13404019 is a deficient number, since it is larger than the sum of its proper divisors (196561).

13404019 is an frugal number, since it uses more digits than its factorization.

13404019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2801 (or 2730 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 13404019 is about 3661.1499559565. The cubic root of 13404019 is about 237.5445176014.

The spelling of 13404019 in words is "thirteen million, four hundred four thousand, nineteen".