3528020 has 12 divisors (see below), whose sum is σ = 7408884. Its totient is φ = 1411200.

The previous prime is 3528011. The next prime is 3528029. The reversal of 3528020 is 208253.

It is an interprime number because it is at equal distance from previous prime (3528011) and next prime (3528029).

It can be written as a sum of positive squares in 2 ways, for example, as 2815684 + 712336 = 1678^2 + 844^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 176401 = 3528020 / (3 + 5 + 2 + 8 + 0 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 3527983 and 3528001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3528029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88181 + ... + 88220.

It is an arithmetic number, because the mean of its divisors is an integer number (617407).

Almost surely, 2^3528020 is an apocalyptic number.

It is an amenable number.

3528020 is an abundant number, since it is smaller than the sum of its proper divisors (3880864).

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

3528020 is a wasteful number, since it uses less digits than its factorization.

3528020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176410 (or 176408 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 3528020 is about 1878.3024250637. The cubic root of 3528020 is about 152.2335398866.

It can be divided in two parts, 35280 and 20, that multiplied together give a square (705600 = 840²).

The spelling of 3528020 in words is "three million, five hundred twenty-eight thousand, twenty".