4047220 has 12 divisors (see below), whose sum is σ = 8499204. Its totient is φ = 1618880.

The previous prime is 4047157. The next prime is 4047257. The reversal of 4047220 is 227404.

It can be written as a sum of positive squares in 2 ways, for example, as 763876 + 3283344 = 874^2 + 1812^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101161 + ... + 101200.

It is an arithmetic number, because the mean of its divisors is an integer number (708267).

Almost surely, 2^4047220 is an apocalyptic number.

It is an amenable number.

4047220 is an abundant number, since it is smaller than the sum of its proper divisors (4451984).

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

4047220 is a wasteful number, since it uses less digits than its factorization.

4047220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202370 (or 202368 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 4047220 is about 2011.7703646291. The cubic root of 4047220 is about 159.3623055377.

The spelling of 4047220 in words is "four million, forty-seven thousand, two hundred twenty".