4342540 has 24 divisors (see below), whose sum is σ = 9177840. Its totient is φ = 1725888.

The previous prime is 4342523. The next prime is 4342549. The reversal of 4342540 is 452434.

It is a happy number.

It is a super-4 number, since 4×4342540⁴ (a number of 28 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (4342549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2974 + ... + 4186.

It is an arithmetic number, because the mean of its divisors is an integer number (382410).

Almost surely, 2^4342540 is an apocalyptic number.

It is an amenable number.

4342540 is an abundant number, since it is smaller than the sum of its proper divisors (4835300).

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

4342540 is a wasteful number, since it uses less digits than its factorization.

4342540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401 (or 1399 counting only the distinct ones).

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

The square root of 4342540 is about 2083.8761959387. The cubic root of 4342540 is about 163.1478202882.

Adding to 4342540 its reverse (452434), we get a palindrome (4794974).

The spelling of 4342540 in words is "four million, three hundred forty-two thousand, five hundred forty".