3506020 has 48 divisors (see below), whose sum is σ = 8547840. Its totient is φ = 1183104.

The previous prime is 3505991. The next prime is 3506023. The reversal of 3506020 is 206053.

It is a junction number, because it is equal to n+sod(n) for n = 3505985 and 3506003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3506023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10902 + ... + 11218.

It is an arithmetic number, because the mean of its divisors is an integer number (178080).

Almost surely, 2^3506020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3506020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4273920).

3506020 is an abundant number, since it is smaller than the sum of its proper divisors (5041820).

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

3506020 is a wasteful number, since it uses less digits than its factorization.

3506020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412 (or 410 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 3506020 is about 1872.4369148252. The cubic root of 3506020 is about 151.9164476173.

The spelling of 3506020 in words is "three million, five hundred six thousand, twenty".