3405778 has 8 divisors (see below), whose sum is σ = 5145840. Its totient is φ = 1690500.

The previous prime is 3405757. The next prime is 3405781. The reversal of 3405778 is 8775043.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 5848 + ... + 6403.

It is an arithmetic number, because the mean of its divisors is an integer number (643230).

Almost surely, 2^3405778 is an apocalyptic number.

3405778 is a deficient number, since it is larger than the sum of its proper divisors (1740062).

3405778 is a wasteful number, since it uses less digits than its factorization.

3405778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12392.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 3405778 is about 1845.4750066040. The cubic root of 3405778 is about 150.4545912904.

The spelling of 3405778 in words is "three million, four hundred five thousand, seven hundred seventy-eight".