3405724 has 12 divisors (see below), whose sum is σ = 6811504. Its totient is φ = 1459584.

The previous prime is 3405713. The next prime is 3405737. The reversal of 3405724 is 4275043.

3405724 is an admirable number.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60789 + ... + 60844.

Almost surely, 2^3405724 is an apocalyptic number.

It is an amenable number.

3405724 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3405724 is a wasteful number, since it uses less digits than its factorization.

3405724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121644 (or 121642 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 3405724 is about 1845.4603761663. The cubic root of 3405724 is about 150.4537961132.

The spelling of 3405724 in words is "three million, four hundred five thousand, seven hundred twenty-four".