13861344 has 48 divisors (see below), whose sum is σ = 41586048. Its totient is φ = 3960192.

The previous prime is 13861339. The next prime is 13861361. The reversal of 13861344 is 44316831.

It is a tau number, because it is divible by the number of its divisors (48).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9642 + ... + 10985.

It is an arithmetic number, because the mean of its divisors is an integer number (866376).

Almost surely, 2^13861344 is an apocalyptic number.

13861344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13861344 is an abundant number, since it is smaller than the sum of its proper divisors (27724704).

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

13861344 is a wasteful number, since it uses less digits than its factorization.

13861344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20647 (or 20639 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 13861344 is about 3723.0825937655. The cubic root of 13861344 is about 240.2159168026.

The spelling of 13861344 in words is "thirteen million, eight hundred sixty-one thousand, three hundred forty-four".