14555640 has 64 divisors (see below), whose sum is σ = 47640960. Its totient is φ = 3528320.

The previous prime is 14555633. The next prime is 14555657. The reversal of 14555640 is 4655541.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 14555598 and 14555607.

It is a congruent number.

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, 4194 + ... + 6833.

It is an arithmetic number, because the mean of its divisors is an integer number (744390).

Almost surely, 2^14555640 is an apocalyptic number.

14555640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14555640 is an abundant number, since it is smaller than the sum of its proper divisors (33085320).

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

14555640 is a wasteful number, since it uses less digits than its factorization.

14555640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11052 (or 11048 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 14555640 is about 3815.1854476552. The cubic root of 14555640 is about 244.1614536557.

Subtracting from 14555640 its reverse (4655541), we obtain a palindrome (9900099).

The spelling of 14555640 in words is "fourteen million, five hundred fifty-five thousand, six hundred forty".