4340520 has 64 divisors (see below), whose sum is σ = 14472000. Its totient is φ = 1157184.

The previous prime is 4340503. The next prime is 4340521. The reversal of 4340520 is 250434.

It is a happy number.

It is a super-2 number, since 2×4340520² = 37680227740800, 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 = 4340493 and 4340502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4340521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 930 + ... + 3089.

It is an arithmetic number, because the mean of its divisors is an integer number (226125).

Almost surely, 2^4340520 is an apocalyptic number.

4340520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4340520 is an abundant number, since it is smaller than the sum of its proper divisors (10131480).

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

4340520 is a wasteful number, since it uses less digits than its factorization.

4340520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4039 (or 4029 counting only the distinct ones).

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

The square root of 4340520 is about 2083.3914658556. The cubic root of 4340520 is about 163.1225194497.

Adding to 4340520 its reverse (250434), we get a palindrome (4590954).

The spelling of 4340520 in words is "four million, three hundred forty thousand, five hundred twenty".