4200540 has 24 divisors (see below), whose sum is σ = 11761680. Its totient is φ = 1120128.

The previous prime is 4200529. The next prime is 4200583. The reversal of 4200540 is 450024.

It is a Harshad number since it is a multiple of its sum of digits (15).

4200540 is a modest number, since divided by 540 gives 420 as remainder.

It is a congruent number.

It is an unprimeable number.

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, 34945 + ... + 35064.

It is an arithmetic number, because the mean of its divisors is an integer number (490070).

Almost surely, 2^4200540 is an apocalyptic number.

It is an amenable number.

4200540 is an abundant number, since it is smaller than the sum of its proper divisors (7561140).

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

4200540 is a wasteful number, since it uses less digits than its factorization.

4200540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70021 (or 70019 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 4200540 is about 2049.5218954673. The cubic root of 4200540 is about 161.3497790003.

Adding to 4200540 its reverse (450024), we get a palindrome (4650564).

The spelling of 4200540 in words is "four million, two hundred thousand, five hundred forty".