3403656 has 48 divisors (see below), whose sum is σ = 9451260. Its totient is φ = 1105920.

The previous prime is 3403639. The next prime is 3403661. The reversal of 3403656 is 6563043.

3403656 is a `hidden beast` number, since 3 + 4 + 0 + 3 + 656 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3348900 + 54756 = 1830^2 + 234^2 .

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2376 + ... + 3528.

Almost surely, 2^3403656 is an apocalyptic number.

3403656 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3403656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4725630).

3403656 is an abundant number, since it is smaller than the sum of its proper divisors (6047604).

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

3403656 is a wasteful number, since it uses less digits than its factorization.

3403656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206 (or 1199 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 3403656 is about 1844.8999972898. The cubic root of 3403656 is about 150.4233374454.

Adding to 3403656 its reverse (6563043), we get a palindrome (9966699).

The spelling of 3403656 in words is "three million, four hundred three thousand, six hundred fifty-six".