3212406 has 64 divisors (see below), whose sum is σ = 7833600. Its totient is φ = 972000.

The previous prime is 3212389. The next prime is 3212413. The reversal of 3212406 is 6042123.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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, 31756 + ... + 31856.

It is an arithmetic number, because the mean of its divisors is an integer number (122400).

Almost surely, 2^3212406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3212406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3916800).

3212406 is an abundant number, since it is smaller than the sum of its proper divisors (4621194).

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

3212406 is a wasteful number, since it uses less digits than its factorization.

3212406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 3212406 is about 1792.3186100691. The cubic root of 3212406 is about 147.5514481066.

Adding to 3212406 its reverse (6042123), we get a palindrome (9254529).

The spelling of 3212406 in words is "three million, two hundred twelve thousand, four hundred six".