14557840 has 80 divisors (see below), whose sum is σ = 37604736. Its totient is φ = 5196800.

The previous prime is 14557811. The next prime is 14557853. The reversal of 14557840 is 4875541.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 14557796 and 14557805.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62364 + ... + 62596.

Almost surely, 2^14557840 is an apocalyptic number.

14557840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14557840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18802368).

14557840 is an abundant number, since it is smaller than the sum of its proper divisors (23046896).

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

14557840 is a wasteful number, since it uses less digits than its factorization.

14557840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 322 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 14557840 is about 3815.4737582638. The cubic root of 14557840 is about 244.1737542287.

The spelling of 14557840 in words is "fourteen million, five hundred fifty-seven thousand, eight hundred forty".