3394890 has 48 divisors (see below), whose sum is σ = 8974368. Its totient is φ = 890208.

The previous prime is 3394879. The next prime is 3394891. The reversal of 3394890 is 984933.

3394890 = 822² + 823² + ... + 826².

It is a super-2 number, since 2×3394890² = 23050556224200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3394891) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5749 + ... + 6311.

It is an arithmetic number, because the mean of its divisors is an integer number (186966).

Almost surely, 2^3394890 is an apocalyptic number.

3394890 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 3394890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4487184).

3394890 is an abundant number, since it is smaller than the sum of its proper divisors (5579478).

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

3394890 is a wasteful number, since it uses less digits than its factorization.

3394890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643 (or 640 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 3394890 is about 1842.5227271326. The cubic root of 3394890 is about 150.2940896982.

The spelling of 3394890 in words is "three million, three hundred ninety-four thousand, eight hundred ninety".