3521080 has 64 divisors (see below), whose sum is σ = 8618400. Its totient is φ = 1290240.

The previous prime is 3521071. The next prime is 3521083. The reversal of 3521080 is 801253.

3521080 = T₁₉₁ + T₁₉₂ + ... + T₃₀₃.

It is a happy number.

It is a super-3 number, since 3×3521080³ (a number of 21 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3521083) 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, 31104 + ... + 31216.

Almost surely, 2^3521080 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 3521080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4309200).

3521080 is an abundant number, since it is smaller than the sum of its proper divisors (5097320).

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

3521080 is a wasteful number, since it uses less digits than its factorization.

3521080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 3521080 is about 1876.4541028227. The cubic root of 3521080 is about 152.1336543724.

It can be divided in two parts, 35 and 21080, that added together give a triangular number (21115 = T₂₀₅).

The spelling of 3521080 in words is "three million, five hundred twenty-one thousand, eighty".