14540220 has 36 divisors (see below), whose sum is σ = 44105880. Its totient is φ = 3877344.

The previous prime is 14540167. The next prime is 14540233. The reversal of 14540220 is 2204541.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×14540220² = 422835995296800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 14540193 and 14540202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40210 + ... + 40569.

Almost surely, 2^14540220 is an apocalyptic number.

14540220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14540220 is an abundant number, since it is smaller than the sum of its proper divisors (29565660).

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

14540220 is a wasteful number, since it uses less digits than its factorization.

14540220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80794 (or 80789 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 14540220 is about 3813.1640405312. The cubic root of 14540220 is about 244.0752030130.

Adding to 14540220 its reverse (2204541), we get a palindrome (16744761).

The spelling of 14540220 in words is "fourteen million, five hundred forty thousand, two hundred twenty".