4523620 has 24 divisors (see below), whose sum is σ = 9757944. Its totient is φ = 1760256.

The previous prime is 4523599. The next prime is 4523621. The reversal of 4523620 is 263254.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1340964 + 3182656 = 1158^2 + 1784^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4523591 and 4523600.

It is not an unprimeable number, because it can be changed into a prime (4523621) 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, 2317 + ... + 3796.

It is an arithmetic number, because the mean of its divisors is an integer number (406581).

Almost surely, 2^4523620 is an apocalyptic number.

It is an amenable number.

4523620 is an abundant number, since it is smaller than the sum of its proper divisors (5234324).

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

4523620 is a wasteful number, since it uses less digits than its factorization.

4523620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6159 (or 6157 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 4523620 is about 2126.8803445422. The cubic root of 4523620 is about 165.3847160072.

Adding to 4523620 its reverse (263254), we get a palindrome (4786874).

The spelling of 4523620 in words is "four million, five hundred twenty-three thousand, six hundred twenty".