14552640 has 168 divisors, whose sum is σ = 51986688. Its totient is φ = 3732480.

The previous prime is 14552633. The next prime is 14552641. The reversal of 14552640 is 4625541.

14552640 is a `hidden beast` number, since 14 + 5 + 5 + 2 + 640 = 666.

It is not an unprimeable number, because it can be changed into a prime (14552641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89199 + ... + 89361.

Almost surely, 2^14552640 is an apocalyptic number.

14552640 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 14552640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25993344).

14552640 is an abundant number, since it is smaller than the sum of its proper divisors (37434048).

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

14552640 is a wasteful number, since it uses less digits than its factorization.

14552640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 14552640 is about 3814.7922617097. The cubic root of 14552640 is about 244.1446781495.

It can be divided in two parts, 1455 and 2640, that added together give a triangular number (4095 = T₉₀).

The spelling of 14552640 in words is "fourteen million, five hundred fifty-two thousand, six hundred forty".