3216390 has 32 divisors (see below), whose sum is σ = 7987680. Its totient is φ = 827904.

The previous prime is 3216359. The next prime is 3216403. The reversal of 3216390 is 936123.

It is a self number, because there is not a number n which added to its sum of digits gives 3216390.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 979 + ... + 2718.

It is an arithmetic number, because the mean of its divisors is an integer number (249615).

Almost surely, 2^3216390 is an apocalyptic number.

3216390 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3216390 is an abundant number, since it is smaller than the sum of its proper divisors (4771290).

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

3216390 is a wasteful number, since it uses less digits than its factorization.

3216390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3736.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 3216390 is about 1793.4296752312. The cubic root of 3216390 is about 147.6124202796.

The spelling of 3216390 in words is "three million, two hundred sixteen thousand, three hundred ninety".