3522020 has 24 divisors (see below), whose sum is σ = 7438200. Its totient is φ = 1400832.

The previous prime is 3522019. The next prime is 3522053. The reversal of 3522020 is 202253.

It can be written as a sum of positive squares in 4 ways, for example, as 891136 + 2630884 = 944^2 + 1622^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3521986 and 3522004.

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, 4196 + ... + 4964.

It is an arithmetic number, because the mean of its divisors is an integer number (309925).

Almost surely, 2^3522020 is an apocalyptic number.

It is an amenable number.

3522020 is an abundant number, since it is smaller than the sum of its proper divisors (3916180).

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

3522020 is a wasteful number, since it uses less digits than its factorization.

3522020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007 (or 1005 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 3522020 is about 1876.7045585281. The cubic root of 3522020 is about 152.1471912144.

Adding to 3522020 its reverse (202253), we get a palindrome (3724273).

The spelling of 3522020 in words is "three million, five hundred twenty-two thousand, twenty".