3309438 has 32 divisors (see below), whose sum is σ = 7402752. Its totient is φ = 977600.

The previous prime is 3309437. The next prime is 3309461. The reversal of 3309438 is 8349033.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3309437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2095 + ... + 3317.

It is an arithmetic number, because the mean of its divisors is an integer number (231336).

Almost surely, 2^3309438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3309438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3701376).

3309438 is an abundant number, since it is smaller than the sum of its proper divisors (4093314).

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

3309438 is a wasteful number, since it uses less digits than its factorization.

3309438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 3309438 is about 1819.1860817410. The cubic root of 3309438 is about 149.0223529967.

The spelling of 3309438 in words is "three million, three hundred nine thousand, four hundred thirty-eight".