13888469 has 8 divisors (see below), whose sum is σ = 16090560. Its totient is φ = 11740896.

The previous prime is 13888447. The next prime is 13888471. The reversal of 13888469 is 96488831.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13888469 is a prime.

It is a super-2 number, since 2×13888469² = 385779142327922, 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 (13888499) 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, 13079 + ... + 14100.

It is an arithmetic number, because the mean of its divisors is an integer number (2011320).

Almost surely, 2^13888469 is an apocalyptic number.

It is an amenable number.

13888469 is a deficient number, since it is larger than the sum of its proper divisors (2202091).

13888469 is an equidigital number, since it uses as much as digits as its factorization.

13888469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27259.

The product of its digits is 331776, while the sum is 47.

The square root of 13888469 is about 3726.7236280680. The cubic root of 13888469 is about 240.3725060219.

The spelling of 13888469 in words is "thirteen million, eight hundred eighty-eight thousand, four hundred sixty-nine".