3216738 has 64 divisors (see below), whose sum is σ = 8064000. Its totient is φ = 834624.

The previous prime is 3216691. The next prime is 3216751. The reversal of 3216738 is 8376123.

It is an Ulam 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, 23073 + ... + 23211.

It is an arithmetic number, because the mean of its divisors is an integer number (126000).

Almost surely, 2^3216738 is an apocalyptic number.

3216738 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3216738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4032000).

3216738 is an abundant number, since it is smaller than the sum of its proper divisors (4847262).

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

3216738 is a wasteful number, since it uses less digits than its factorization.

3216738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199.

The product of its digits is 6048, while the sum is 30.

The square root of 3216738 is about 1793.5266934172. The cubic root of 3216738 is about 147.6177437706.

The spelling of 3216738 in words is "three million, two hundred sixteen thousand, seven hundred thirty-eight".