4534420 has 24 divisors (see below), whose sum is σ = 10388448. Its totient is φ = 1648800.

The previous prime is 4534417. The next prime is 4534421. The reversal of 4534420 is 244354.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 4534391 and 4534400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4534421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10086 + ... + 10525.

It is an arithmetic number, because the mean of its divisors is an integer number (432852).

Almost surely, 2^4534420 is an apocalyptic number.

It is an amenable number.

4534420 is an abundant number, since it is smaller than the sum of its proper divisors (5854028).

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

4534420 is a wasteful number, since it uses less digits than its factorization.

4534420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20631 (or 20629 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 4534420 is about 2129.4177607975. The cubic root of 4534420 is about 165.5162283323.

Adding to 4534420 its reverse (244354), we get a palindrome (4778774).

The spelling of 4534420 in words is "four million, five hundred thirty-four thousand, four hundred twenty".