14491540 has 24 divisors (see below), whose sum is σ = 34780032. Its totient is φ = 4968480.

The previous prime is 14491537. The next prime is 14491549. The reversal of 14491540 is 4519441.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 14491499 and 14491508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14491549) 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, 51616 + ... + 51895.

It is an arithmetic number, because the mean of its divisors is an integer number (1449168).

Almost surely, 2^14491540 is an apocalyptic number.

14491540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14491540 is an abundant number, since it is smaller than the sum of its proper divisors (20288492).

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

14491540 is a wasteful number, since it uses less digits than its factorization.

14491540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103527 (or 103525 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 14491540 is about 3806.7755384314. The cubic root of 14491540 is about 243.8025142168.

The spelling of 14491540 in words is "fourteen million, four hundred ninety-one thousand, five hundred forty".