3521244 has 48 divisors (see below), whose sum is σ = 8932896. Its totient is φ = 1075200.

The previous prime is 3521239. The next prime is 3521249. The reversal of 3521244 is 4421253.

It is an interprime number because it is at equal distance from previous prime (3521239) and next prime (3521249).

It is a self number, because there is not a number n which added to its sum of digits gives 3521244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3521249) 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, 8154 + ... + 8574.

It is an arithmetic number, because the mean of its divisors is an integer number (186102).

Almost surely, 2^3521244 is an apocalyptic number.

3521244 is a gapful number since it is divisible by the number (34) 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 3521244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4466448).

3521244 is an abundant number, since it is smaller than the sum of its proper divisors (5411652).

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

3521244 is a wasteful number, since it uses less digits than its factorization.

3521244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486 (or 484 counting only the distinct ones).

The product of its digits is 960, while the sum is 21.

The square root of 3521244 is about 1876.4978017573. The cubic root of 3521244 is about 152.1360162928.

Adding to 3521244 its reverse (4421253), we get a palindrome (7942497).

Subtracting 3521244 from its reverse (4421253), we obtain a palindrome (900009).

It can be divided in two parts, 352 and 1244, that added together give a triangular number (1596 = T₅₆).

The spelling of 3521244 in words is "three million, five hundred twenty-one thousand, two hundred forty-four".