14400666 has 112 divisors (see below), whose sum is σ = 39662784. Its totient is φ = 3825792.

The previous prime is 14400629. The next prime is 14400667. The reversal of 14400666 is 66600441.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (14400667) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 173461 + ... + 173543.

It is an arithmetic number, because the mean of its divisors is an integer number (354132).

Almost surely, 2^14400666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14400666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19831392).

14400666 is an abundant number, since it is smaller than the sum of its proper divisors (25262118).

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

14400666 is an equidigital number, since it uses as much as digits as its factorization.

14400666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 14400666 is about 3794.8209443925. The cubic root of 14400666 is about 243.2918304563.

The spelling of 14400666 in words is "fourteen million, four hundred thousand, six hundred sixty-six".