14664420 has 72 divisors (see below), whose sum is σ = 44796024. Its totient is φ = 3883008.

The previous prime is 14664413. The next prime is 14664449. The reversal of 14664420 is 2446641.

14664420 is a `hidden beast` number, since 14 + 6 + 644 + 2 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2005056 + 12659364 = 1416^2 + 3558^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46102 + ... + 46418.

It is an arithmetic number, because the mean of its divisors is an integer number (622167).

Almost surely, 2^14664420 is an apocalyptic number.

14664420 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 14664420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22398012).

14664420 is an abundant number, since it is smaller than the sum of its proper divisors (30131604).

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

14664420 is a wasteful number, since it uses less digits than its factorization.

14664420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589 (or 584 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 14664420 is about 3829.4150989414. The cubic root of 14664420 is about 244.7681827801.

It can be divided in two parts, 1466 and 4420, that added together give a triangular number (5886 = T₁₀₈).

The spelling of 14664420 in words is "fourteen million, six hundred sixty-four thousand, four hundred twenty".