4200520 has 32 divisors (see below), whose sum is σ = 9950400. Its totient is φ = 1591488.

The previous prime is 4200487. The next prime is 4200523. The reversal of 4200520 is 250024.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 4200520.

It is not an unprimeable number, because it can be changed into a prime (4200523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2004 + ... + 3523.

It is an arithmetic number, because the mean of its divisors is an integer number (310950).

Almost surely, 2^4200520 is an apocalyptic number.

4200520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4200520 is an abundant number, since it is smaller than the sum of its proper divisors (5749880).

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

4200520 is a wasteful number, since it uses less digits than its factorization.

4200520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5557 (or 5553 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 4200520 is about 2049.5170162748. The cubic root of 4200520 is about 161.3495229221.

Adding to 4200520 its reverse (250024), we get a palindrome (4450544).

It can be divided in two parts, 42005 and 20, that added together give a square (42025 = 205²).

The spelling of 4200520 in words is "four million, two hundred thousand, five hundred twenty".