3532020 has 72 divisors (see below), whose sum is σ = 10400544. Its totient is φ = 895104.

The previous prime is 3532019. The next prime is 3532021. The reversal of 3532020 is 202353.

It is an interprime number because it is at equal distance from previous prime (3532019) and next prime (3532021).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3532021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82119 + ... + 82161.

It is an arithmetic number, because the mean of its divisors is an integer number (144452).

Almost surely, 2^3532020 is an apocalyptic number.

3532020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3532020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5200272).

3532020 is an abundant number, since it is smaller than the sum of its proper divisors (6868524).

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

3532020 is a wasteful number, since it uses less digits than its factorization.

3532020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 15.

The square root of 3532020 is about 1879.3669146816. The cubic root of 3532020 is about 152.2910512926.

Adding to 3532020 its reverse (202353), we get a palindrome (3734373).

The spelling of 3532020 in words is "three million, five hundred thirty-two thousand, twenty".