3403218 has 64 divisors (see below), whose sum is σ = 8773632. Its totient is φ = 855360.

The previous prime is 3403201. The next prime is 3403229. The reversal of 3403218 is 8123043.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 3403194 and 3403203.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12423 + ... + 12693.

It is an arithmetic number, because the mean of its divisors is an integer number (137088).

Almost surely, 2^3403218 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3403218, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4386816).

3403218 is an abundant number, since it is smaller than the sum of its proper divisors (5370414).

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

3403218 is a wasteful number, since it uses less digits than its factorization.

3403218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 3403218 is about 1844.7812878496. The cubic root of 3403218 is about 150.4168847518.

The spelling of 3403218 in words is "three million, four hundred three thousand, two hundred eighteen".