14981220 has 48 divisors (see below), whose sum is σ = 46609920. Its totient is φ = 3994848.

The previous prime is 14981207. The next prime is 14981227. The reversal of 14981220 is 2218941.

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 (14981227) 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, 13332 + ... + 14411.

It is an arithmetic number, because the mean of its divisors is an integer number (971040).

Almost surely, 2^14981220 is an apocalyptic number.

14981220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14981220 is an abundant number, since it is smaller than the sum of its proper divisors (31628700).

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

14981220 is a wasteful number, since it uses less digits than its factorization.

14981220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27761 (or 27753 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 14981220 is about 3870.5580992927. The cubic root of 14981220 is about 246.5182411993.

The spelling of 14981220 in words is "fourteen million, nine hundred eighty-one thousand, two hundred twenty".