3390940 has 48 divisors (see below), whose sum is σ = 8309952. Its totient is φ = 1138176.

The previous prime is 3390931. The next prime is 3390953. The reversal of 3390940 is 490933.

3390940 = T₈ + T₉ + ... + T₂₇₂.

3390940 = 693² + 694² + ... + 699².

It is a super-2 number, since 2×3390940² = 22996948167200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 3390899 and 3390908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7192 + ... + 7648.

It is an arithmetic number, because the mean of its divisors is an integer number (173124).

Almost surely, 2^3390940 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 3390940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4154976).

3390940 is an abundant number, since it is smaller than the sum of its proper divisors (4919012).

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

3390940 is a wasteful number, since it uses less digits than its factorization.

3390940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526 (or 524 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 3390940 is about 1841.4505152189. The cubic root of 3390940 is about 150.2357773476.

The spelling of 3390940 in words is "three million, three hundred ninety thousand, nine hundred forty".