4240220 has 24 divisors (see below), whose sum is σ = 9123408. Its totient is φ = 1654400.

The previous prime is 4240219. The next prime is 4240267. The reversal of 4240220 is 220424.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4240195 and 4240204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1766 + ... + 3405.

It is an arithmetic number, because the mean of its divisors is an integer number (380142).

Almost surely, 2^4240220 is an apocalyptic number.

It is an amenable number.

4240220 is an abundant number, since it is smaller than the sum of its proper divisors (4883188).

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

4240220 is a wasteful number, since it uses less digits than its factorization.

4240220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5221 (or 5219 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 4240220 is about 2059.1794482269. The cubic root of 4240220 is about 161.8562459950.

Adding to 4240220 its reverse (220424), we get a palindrome (4460644).

The spelling of 4240220 in words is "four million, two hundred forty thousand, two hundred twenty".