14642220 has 48 divisors (see below), whose sum is σ = 41192928. Its totient is φ = 3886080.

The previous prime is 14642213. The next prime is 14642227. The reversal of 14642220 is 2224641.

It is an interprime number because it is at equal distance from previous prime (14642213) and next prime (14642227).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14642227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16180 + ... + 17060.

It is an arithmetic number, because the mean of its divisors is an integer number (858186).

Almost surely, 2^14642220 is an apocalyptic number.

14642220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14642220 is an abundant number, since it is smaller than the sum of its proper divisors (26550708).

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

14642220 is a wasteful number, since it uses less digits than its factorization.

14642220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170 (or 1168 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 14642220 is about 3826.5153860922. The cubic root of 14642220 is about 244.6446048045.

Adding to 14642220 its reverse (2224641), we get a palindrome (16866861).

The spelling of 14642220 in words is "fourteen million, six hundred forty-two thousand, two hundred twenty".