3561472 has 48 divisors (see below), whose sum is σ = 7469280. Its totient is φ = 1695744.

The previous prime is 3561443. The next prime is 3561479. The reversal of 3561472 is 2741653.

It is a self number, because there is not a number n which added to its sum of digits gives 3561472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3561479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75753 + ... + 75799.

It is an arithmetic number, because the mean of its divisors is an integer number (155610).

Almost surely, 2^3561472 is an apocalyptic number.

3561472 is a gapful number since it is divisible by the number (32) 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 3561472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3734640).

3561472 is an abundant number, since it is smaller than the sum of its proper divisors (3907808).

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

3561472 is an equidigital number, since it uses as much as digits as its factorization.

3561472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106 (or 86 counting only the distinct ones).

The product of its digits is 5040, while the sum is 28.

The square root of 3561472 is about 1887.1862653167. The cubic root of 3561472 is about 152.7131767379.

The spelling of 3561472 in words is "three million, five hundred sixty-one thousand, four hundred seventy-two".