13643454 has 48 divisors (see below), whose sum is σ = 30796416. Its totient is φ = 3996000.

The previous prime is 13643437. The next prime is 13643459. The reversal of 13643454 is 45434631.

It is a super-2 number, since 2×13643454² = 372287674100232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13643459) 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 23 ways as a sum of consecutive naturals, for example, 90279 + ... + 90429.

It is an arithmetic number, because the mean of its divisors is an integer number (641592).

Almost surely, 2^13643454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13643454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15398208).

13643454 is an abundant number, since it is smaller than the sum of its proper divisors (17152962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13643454 is a wasteful number, since it uses less digits than its factorization.

13643454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241 (or 204 counting only the distinct ones).

The product of its digits is 17280, while the sum is 30.

The square root of 13643454 is about 3693.7046443916. The cubic root of 13643454 is about 238.9505917251.

The spelling of 13643454 in words is "thirteen million, six hundred forty-three thousand, four hundred fifty-four".