13378469 has 4 divisors (see below), whose sum is σ = 14407596. Its totient is φ = 12349344.

The previous prime is 13378429. The next prime is 13378487. The reversal of 13378469 is 96487331.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7317025 + 6061444 = 2705^2 + 2462^2 .

It is a cyclic number.

It is not a de Polignac number, because 13378469 - 2¹² = 13374373 is a prime.

It is a super-2 number, since 2×13378469² = 357966865567922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13378429) 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, 514544 + ... + 514569.

It is an arithmetic number, because the mean of its divisors is an integer number (3601899).

Almost surely, 2^13378469 is an apocalyptic number.

It is an amenable number.

13378469 is a deficient number, since it is larger than the sum of its proper divisors (1029127).

13378469 is a wasteful number, since it uses less digits than its factorization.

13378469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029126.

The product of its digits is 108864, while the sum is 41.

The square root of 13378469 is about 3657.6589507498. The cubic root of 13378469 is about 237.3934901916.

The spelling of 13378469 in words is "thirteen million, three hundred seventy-eight thousand, four hundred sixty-nine".