3421818 has 16 divisors (see below), whose sum is σ = 7604160. Its totient is φ = 1140588.

The previous prime is 3421813. The next prime is 3421853. The reversal of 3421818 is 8181243.

It is a Harshad number since it is a multiple of its sum of digits (27).

3421818 is a modest number, since divided by 1818 gives 342 as remainder.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3421791 and 3421800.

It is not an unprimeable number, because it can be changed into a prime (3421813) 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, 31630 + ... + 31737.

It is an arithmetic number, because the mean of its divisors is an integer number (475260).

Almost surely, 2^3421818 is an apocalyptic number.

3421818 is an abundant number, since it is smaller than the sum of its proper divisors (4182342).

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

3421818 is a wasteful number, since it uses less digits than its factorization.

3421818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63378 (or 63372 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 3421818 is about 1849.8156664922. The cubic root of 3421818 is about 150.6904172842.

It can be divided in two parts, 3 and 421818, that added together give a triangular number (421821 = T₉₁₈).

The spelling of 3421818 in words is "three million, four hundred twenty-one thousand, eight hundred eighteen".