13438019 has 8 divisors (see below), whose sum is σ = 15379968. Its totient is φ = 11501640.

The previous prime is 13438013. The next prime is 13438031. The reversal of 13438019 is 91083431.

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

It is a cyclic number.

It is not a de Polignac number, because 13438019 - 2⁸ = 13437763 is a prime.

It is a super-2 number, since 2×13438019² = 361160709288722, 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 = 13437982 and 13438000.

It is not an unprimeable number, because it can be changed into a prime (13438013) 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, 8294 + ... + 9780.

It is an arithmetic number, because the mean of its divisors is an integer number (1922496).

Almost surely, 2^13438019 is an apocalyptic number.

13438019 is a deficient number, since it is larger than the sum of its proper divisors (1941949).

13438019 is a wasteful number, since it uses less digits than its factorization.

13438019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2785.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 13438019 is about 3665.7903649827. The cubic root of 13438019 is about 237.7451960788.

The spelling of 13438019 in words is "thirteen million, four hundred thirty-eight thousand, nineteen".