3402856 has 32 divisors (see below), whose sum is σ = 6842880. Its totient is φ = 1580800.

The previous prime is 3402851. The next prime is 3402899. The reversal of 3402856 is 6582043.

It is not an unprimeable number, because it can be changed into a prime (3402851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17721 + ... + 17911.

It is an arithmetic number, because the mean of its divisors is an integer number (213840).

Almost surely, 2^3402856 is an apocalyptic number.

It is an amenable number.

3402856 is an abundant number, since it is smaller than the sum of its proper divisors (3440024).

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

3402856 is a wasteful number, since it uses less digits than its factorization.

3402856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345 (or 341 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 3402856 is about 1844.6831706285. The cubic root of 3402856 is about 150.4115512857.

Adding to 3402856 its reverse (6582043), we get a palindrome (9984899).

The spelling of 3402856 in words is "three million, four hundred two thousand, eight hundred fifty-six".