4520340 has 96 divisors (see below), whose sum is σ = 15361920. Its totient is φ = 1094400.

The previous prime is 4520303. The next prime is 4520371. The reversal of 4520340 is 430254.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5560 + ... + 6320.

It is an arithmetic number, because the mean of its divisors is an integer number (160020).

Almost surely, 2^4520340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4520340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7680960).

4520340 is an abundant number, since it is smaller than the sum of its proper divisors (10841580).

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

4520340 is a wasteful number, since it uses less digits than its factorization.

4520340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790 (or 782 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 4520340 is about 2126.1091223171. The cubic root of 4520340 is about 165.3447337930.

Adding to 4520340 its reverse (430254), we get a palindrome (4950594).

The spelling of 4520340 in words is "four million, five hundred twenty thousand, three hundred forty".