3554816 has 40 divisors (see below), whose sum is σ = 7291944. Its totient is φ = 1730560.

The previous prime is 3554813. The next prime is 3554821. The reversal of 3554816 is 6184553.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3554813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27071 + ... + 27201.

Almost surely, 2^3554816 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 3554816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3645972).

3554816 is an abundant number, since it is smaller than the sum of its proper divisors (3737128).

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

3554816 is an equidigital number, since it uses as much as digits as its factorization.

3554816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202 (or 186 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

The square root of 3554816 is about 1885.4219686850. The cubic root of 3554816 is about 152.6179826928.

The spelling of 3554816 in words is "three million, five hundred fifty-four thousand, eight hundred sixteen".