14644540 has 24 divisors (see below), whose sum is σ = 31056480. Its totient is φ = 5800128.

The previous prime is 14644519. The next prime is 14644541. The reversal of 14644540 is 4544641.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 14644499 and 14644508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14644541) 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, 1495 + ... + 5614.

It is an arithmetic number, because the mean of its divisors is an integer number (1294020).

Almost surely, 2^14644540 is an apocalyptic number.

14644540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14644540 is an abundant number, since it is smaller than the sum of its proper divisors (16411940).

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

14644540 is a wasteful number, since it uses less digits than its factorization.

14644540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7221 (or 7219 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 14644540 is about 3826.8185219579. The cubic root of 14644540 is about 244.6575251018.

The spelling of 14644540 in words is "fourteen million, six hundred forty-four thousand, five hundred forty".