4545220 has 24 divisors (see below), whose sum is σ = 9854208. Its totient is φ = 1759200.

The previous prime is 4545209. The next prime is 4545223. The reversal of 4545220 is 225454.

4545220 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×4545220³ (a number of 21 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4545191 and 4545200.

It is not an unprimeable number, because it can be changed into a prime (4545223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3046 + ... + 4285.

It is an arithmetic number, because the mean of its divisors is an integer number (410592).

Almost surely, 2^4545220 is an apocalyptic number.

It is an amenable number.

4545220 is an abundant number, since it is smaller than the sum of its proper divisors (5308988).

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

4545220 is a wasteful number, since it uses less digits than its factorization.

4545220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7371 (or 7369 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 4545220 is about 2131.9521570617. The cubic root of 4545220 is about 165.6475320004.

The spelling of 4545220 in words is "four million, five hundred forty-five thousand, two hundred twenty".