14540420 has 12 divisors (see below), whose sum is σ = 30534924. Its totient is φ = 5816160.

The previous prime is 14540417. The next prime is 14540429. The reversal of 14540420 is 2404541.

It can be written as a sum of positive squares in 2 ways, for example, as 9935104 + 4605316 = 3152^2 + 2146^2 .

It is a super-2 number, since 2×14540420² = 422847627552800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 727021 = 14540420 / (1 + 4 + 5 + 4 + 0 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 14540392 and 14540401.

It is not an unprimeable number, because it can be changed into a prime (14540429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363491 + ... + 363530.

It is an arithmetic number, because the mean of its divisors is an integer number (2544577).

Almost surely, 2^14540420 is an apocalyptic number.

14540420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14540420 is an abundant number, since it is smaller than the sum of its proper divisors (15994504).

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

14540420 is a wasteful number, since it uses less digits than its factorization.

14540420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727030 (or 727028 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 14540420 is about 3813.1902653815. The cubic root of 14540420 is about 244.0763220887.

Adding to 14540420 its reverse (2404541), we get a palindrome (16944961).

The spelling of 14540420 in words is "fourteen million, five hundred forty thousand, four hundred twenty".