3390390 has 64 divisors (see below), whose sum is σ = 9374400. Its totient is φ = 870912.

The previous prime is 3390389. The next prime is 3390391. The reversal of 3390390 is 930933.

It is an interprime number because it is at equal distance from previous prime (3390389) and next prime (3390391).

It is a super-2 number, since 2×3390390² = 22989488704200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3390391) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7614 + ... + 8046.

It is an arithmetic number, because the mean of its divisors is an integer number (146475).

Almost surely, 2^3390390 is an apocalyptic number.

3390390 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 3390390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4687200).

3390390 is an abundant number, since it is smaller than the sum of its proper divisors (5984010).

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

3390390 is a wasteful number, since it uses less digits than its factorization.

3390390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478 (or 472 counting only the distinct ones).

The product of its (nonzero) digits is 2187, while the sum is 27.

The square root of 3390390 is about 1841.3011703684. The cubic root of 3390390 is about 150.2276543153.

The spelling of 3390390 in words is "three million, three hundred ninety thousand, three hundred ninety".