14891540 has 24 divisors (see below), whose sum is σ = 31715712. Its totient is φ = 5872160.

The previous prime is 14891533. The next prime is 14891551. The reversal of 14891540 is 4519841.

It is a junction number, because it is equal to n+sod(n) for n = 14891497 and 14891506.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3824 + ... + 6663.

It is an arithmetic number, because the mean of its divisors is an integer number (1321488).

Almost surely, 2^14891540 is an apocalyptic number.

14891540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14891540 is an abundant number, since it is smaller than the sum of its proper divisors (16824172).

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

14891540 is a wasteful number, since it uses less digits than its factorization.

14891540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10567 (or 10565 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 14891540 is about 3858.9558173164. The cubic root of 14891540 is about 246.0253570707.

The spelling of 14891540 in words is "fourteen million, eight hundred ninety-one thousand, five hundred forty".