3557844 has 60 divisors (see below), whose sum is σ = 9486400. Its totient is φ = 1162512.

The previous prime is 3557843. The next prime is 3557867. The reversal of 3557844 is 4487553.

3557844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a d-powerful number, because it can be written as 3¹³ + 5² + 5⁸ + 7 + 8⁶ + 4⁹ + 4¹⁰ .

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 3557799 and 3557808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3557843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 25527 + ... + 25665.

Almost surely, 2^3557844 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 3557844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4743200).

3557844 is an abundant number, since it is smaller than the sum of its proper divisors (5928556).

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

3557844 is a wasteful number, since it uses less digits than its factorization.

3557844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234 (or 223 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 3557844 is about 1886.2248010245. The cubic root of 3557844 is about 152.6613038379.

The spelling of 3557844 in words is "three million, five hundred fifty-seven thousand, eight hundred forty-four".