3243390 has 32 divisors (see below), whose sum is σ = 7896096. Its totient is φ = 852480.

The previous prime is 3243377. The next prime is 3243397. The reversal of 3243390 is 933423.

It is a self number, because there is not a number n which added to its sum of digits gives 3243390.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3243397) 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, 1450 + ... + 2930.

It is an arithmetic number, because the mean of its divisors is an integer number (246753).

Almost surely, 2^3243390 is an apocalyptic number.

3243390 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3243390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3948048).

3243390 is an abundant number, since it is smaller than the sum of its proper divisors (4652706).

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

3243390 is a wasteful number, since it uses less digits than its factorization.

3243390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564.

The product of its (nonzero) digits is 1944, while the sum is 24.

The square root of 3243390 is about 1800.9414204799. The cubic root of 3243390 is about 148.0243142425.

It can be divided in two parts, 32433 and 90, that added together give a palindrome (32523).

The spelling of 3243390 in words is "three million, two hundred forty-three thousand, three hundred ninety".