13844540 has 24 divisors (see below), whose sum is σ = 30604560. Its totient is φ = 5246208.

The previous prime is 13844531. The next prime is 13844561. The reversal of 13844540 is 4544831.

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, 17837 + ... + 18596.

It is an arithmetic number, because the mean of its divisors is an integer number (1275190).

Almost surely, 2^13844540 is an apocalyptic number.

13844540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13844540 is an abundant number, since it is smaller than the sum of its proper divisors (16760020).

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

13844540 is a wasteful number, since it uses less digits than its factorization.

13844540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36461 (or 36459 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 13844540 is about 3720.8251772960. The cubic root of 13844540 is about 240.1188069182.

The spelling of 13844540 in words is "thirteen million, eight hundred forty-four thousand, five hundred forty".