3401216 has 80 divisors (see below), whose sum is σ = 8478624. Its totient is φ = 1327104.

The previous prime is 3401213. The next prime is 3401221. The reversal of 3401216 is 6121043.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 3401194 and 3401203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3401213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46556 + ... + 46628.

Almost surely, 2^3401216 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 3401216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4239312).

3401216 is an abundant number, since it is smaller than the sum of its proper divisors (5077408).

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

3401216 is an equidigital number, since it uses as much as digits as its factorization.

3401216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 3401216 is about 1844.2385962776. The cubic root of 3401216 is about 150.3873838821.

Adding to 3401216 its reverse (6121043), we get a palindrome (9522259).

The spelling of 3401216 in words is "three million, four hundred one thousand, two hundred sixteen".