14669820 has 144 divisors (see below), whose sum is σ = 50319360. Its totient is φ = 3427200.

The previous prime is 14669803. The next prime is 14669821. The reversal of 14669820 is 2896641.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14669821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 61261 + ... + 61499.

It is an arithmetic number, because the mean of its divisors is an integer number (349440).

Almost surely, 2^14669820 is an apocalyptic number.

14669820 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 14669820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25159680).

14669820 is an abundant number, since it is smaller than the sum of its proper divisors (35649540).

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

14669820 is a wasteful number, since it uses less digits than its factorization.

14669820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296 (or 291 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 14669820 is about 3830.1201025555. The cubic root of 14669820 is about 244.7982234268.

The spelling of 14669820 in words is "fourteen million, six hundred sixty-nine thousand, eight hundred twenty".