3405756 has 12 divisors (see below), whose sum is σ = 7946792. Its totient is φ = 1135248.

The previous prime is 3405749. The next prime is 3405757. The reversal of 3405756 is 6575043.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3405757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141895 + ... + 141918.

Almost surely, 2^3405756 is an apocalyptic number.

It is an amenable number.

3405756 is an abundant number, since it is smaller than the sum of its proper divisors (4541036).

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

3405756 is a wasteful number, since it uses less digits than its factorization.

3405756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283820 (or 283818 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 3405756 is about 1845.4690460693. The cubic root of 3405756 is about 150.4542673303.

The spelling of 3405756 in words is "three million, four hundred five thousand, seven hundred fifty-six".