3553224 has 64 divisors (see below), whose sum is σ = 9555840. Its totient is φ = 1098240.

The previous prime is 3553223. The next prime is 3553229. The reversal of 3553224 is 4223553.

It is a Cunningham number, because it is equal to 1885²-1.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an Ulam number.

It is a d-powerful number, because it can be written as 3⁷ + 5 + 5⁹ + 3¹³ + 2⁹ + 2¹¹ + 4⁵ .

It is a junction number, because it is equal to n+sod(n) for n = 3553194 and 3553203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3553223) 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, 22554 + ... + 22710.

It is an arithmetic number, because the mean of its divisors is an integer number (149310).

Almost surely, 2^3553224 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 3553224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4777920).

3553224 is an abundant number, since it is smaller than the sum of its proper divisors (6002616).

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

3553224 is a wasteful number, since it uses less digits than its factorization.

3553224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 226 counting only the distinct ones).

The product of its digits is 3600, while the sum is 24.

The square root of 3553224 is about 1884.9997347480. Note that the first 3 decimals coincide. The cubic root of 3553224 is about 152.5951963181.

Adding to 3553224 its reverse (4223553), we get a palindrome (7776777).

The spelling of 3553224 in words is "three million, five hundred fifty-three thousand, two hundred twenty-four".