4245220 has 24 divisors (see below), whose sum is σ = 10188864. Its totient is φ = 1455456.

The previous prime is 4245217. The next prime is 4245239. The reversal of 4245220 is 225424.

4245220 = T₂₇₅ + T₂₇₆ + ... + T₃₅₈.

4245220 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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, 15022 + ... + 15301.

It is an arithmetic number, because the mean of its divisors is an integer number (424536).

Almost surely, 2^4245220 is an apocalyptic number.

It is an amenable number.

4245220 is an abundant number, since it is smaller than the sum of its proper divisors (5943644).

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

4245220 is a wasteful number, since it uses less digits than its factorization.

4245220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30339 (or 30337 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 4245220 is about 2060.3931663641. The cubic root of 4245220 is about 161.9198404422.

It can be divided in two parts, 4245 and 220, that added together give a triangular number (4465 = T₉₄).

The spelling of 4245220 in words is "four million, two hundred forty-five thousand, two hundred twenty".