5128220 has 24 divisors (see below), whose sum is σ = 11403504. Its totient is φ = 1930496.

The previous prime is 5128219. The next prime is 5128229. The reversal of 5128220 is 228215.

5128220 = T₃₀₄ + T₃₀₅ + ... + T₃₈₈.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 5128192 and 5128201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5128229) 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, 7202 + ... + 7881.

It is an arithmetic number, because the mean of its divisors is an integer number (475146).

Almost surely, 2^5128220 is an apocalyptic number.

It is an amenable number.

5128220 is an abundant number, since it is smaller than the sum of its proper divisors (6275284).

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

5128220 is a wasteful number, since it uses less digits than its factorization.

5128220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15109 (or 15107 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 5128220 is about 2264.5573518902. The cubic root of 5128220 is about 172.4469626206.

The spelling of 5128220 in words is "five million, one hundred twenty-eight thousand, two hundred twenty".