3318920 has 64 divisors (see below), whose sum is σ = 8596800. Its totient is φ = 1140480.

The previous prime is 3318919. The next prime is 3318929. The reversal of 3318920 is 298133.

It is a super-2 number, since 2×3318920² = 22030459932800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3318920.

It is not an unprimeable number, because it can be changed into a prime (3318929) 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, 8162 + ... + 8558.

It is an arithmetic number, because the mean of its divisors is an integer number (134325).

Almost surely, 2^3318920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3318920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4298400).

3318920 is an abundant number, since it is smaller than the sum of its proper divisors (5277880).

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

3318920 is a wasteful number, since it uses less digits than its factorization.

3318920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438 (or 434 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 3318920 is about 1821.7903282211. The cubic root of 3318920 is about 149.1645405410.

The spelling of 3318920 in words is "three million, three hundred eighteen thousand, nine hundred twenty".